Good as a xb1 and ps4

Your system is significantly weaker than a PS4 and, if you want to have as good a direct comparison (which is impossible as the PS4 has different architecture than normal APU-based systems), you'd need to add in a BD-R drive (BluRay). Even if you add $100 onto the GPU you wouldn't be as good as the PS4 graphics-wise, as its GPU is a heavily customized R9 270X which contains some tech available in the R9 290X (a $500 GPU). Your CPU is only a dual core - the PS4 has a 2.7Ghz 8 core CPU. You can get a better GPU for your system, like an R7 265 or R9 270 (maybe even 270X) but your system won't be as good as a PS4.

You have absolutely no idea what you're talking about. Basically every game developed for the PS4 runs at 1080p except for Battlefield 4 which wasn't even remotely optimized (It used DX11 which is extremely bloated and not designed for the PS4). The PS4 is a $400 console, not $600 (if it was $600 it'd trash 95% of computers built this year except ones that cost $1000s, just like what the PS3 was). The PS4 will be supported for a decade - what makes you think they'll stop developing for it after 2 years? The reason the previous generation developers didn't fully utilize the PS3 was because it was extremely complex to code for. The PS4 is extremely easy to code for, even easier than the XBox One. The only thing stopping the PS4 is parity with the XBox One which is a massive failure and is complex to code for, like the PS3 was. Developers haven't even tapped into the special architecture the PS4 has. The people that developed the PS4 know a lot more about computers than you'll probably ever know so don't just assume because you know how many 'cores' the GPU has you know everything. Yes, the PS4 may not be extremely powerful like the PS3 was, but that's because the majority of people aren't willing to spend more to get more.

Needless to say, the PS4 is still not using it's hardware fully...I didn't bring up anything other than that. You buy a PS4 and you're stuck with PS4 games, that DO NOT use all of the hardware, and WILL NOT use all of the hardware before the newer console is released, JUST LIKE the PS3. Regardless of how easy they make coding, the system will always have untapped potential. A PC, you can push everything as far as you can get your hardware. You can take a 500 dollar PC, and you can make it play in a far superior fashion to what PS4 will ever be able to offer. The PS4 and ALL of it's games cap out at 1080p at 60 fps. It's capped, set by the programmers. BF4 doesn't even play at 1080p it only plays at 900p, also capped at 60 FPS. The build that I listed for him, has a 750 Ti, will be able to play BF4 on full Ultra, 1920x1080 at about 25 FPS, not that great, right? Okay, bare in mind, PS4 doesn't display "Ultra", they actually only use the Medium-High preset. This has been stated in several reviews for the consoles. I know, you say battlefield 4 wasn't optimized, Hardline, they claim it's in a better point in PS4, still only display medium-high, and at a 1080p resolution. The 750 Ti will be able to run medium-high presets at around 65-70 fps.

A year or two down the road, when games need a lot more PC to get the job done, he can still run his processor, add another stick of ram, and a "current" 150 dollar graphics (Or more) and be right back in the game. So, he gets a PS4, then he's stuck with an out of date system in a year or two. Two years from now, PS5 will be out, and PS4 won't even have games made for it anymore. His PC will still be up and running, playing newer titles.

EDIT: To add to the other bit about trashing $1000 dollar gaming rigs, that statement is blatently ignorant and mislead. The potential is there, should unlock the PS4, as people have done, and "turn" it into a "PC" for lack of better terms. Yeah, the setup would be nice. But as the PS4 sits, with the people making games who make them, it's got so much untapped potential, leaving it sub par to most low end gaming rigs with a minimal OC on them.

I do agree that only first-party devs will have the resources to tap into all of the PS4's hardware benefits, but the average developer will be able to get a lot more out of the PS4 quicker than the PS3. Battlefield 4 runs at a mix of maxed out/high/medium settings with an unlocked framerate at 900p due to the bloated API that DX11 is. If DICE had the time to make the PS4 run properly at 1080p ultra settings, which they wouldn't unless they delayed release and made sure it didn't keep parity with the XBOX One, then it probably would have run smoothly at close to, if not, 60fps. You don't know anything about how Hardline performs on the PS4 until the game has released. Think of it like Watch Dogs - the probable reason it contrasts so differently to the 2012 reveal is because Ubisoft strove to make parity with the XBOX One. That's partly why the PS4 runs Battlefield 4 at 900p.

The PS4 will certainly not be an out of date system in 2 years time. Yes, hardware gets progressively better over time but the only major changes games are making over the next couple of years are increased VRAM and RAM requirements, of which the PS4 has more than enough with 8GB of GDDR5 VRAM split over its architecture. Textures will be more detailed and the PS4 will still be able to keep up. The PS5 will certainly not be out in 2016, more like 2020. There will never be a 2 year console generation. The PS4 has more than enough brunt to last at least 5-6 years (yes, certain graphical effects will be toned down but that is inevitable) - the true failure is Microsoft's console as it pairs a barely customized weak GPU with a weak CPU and RAM not designed for texture management. The PS4's GPU may be a modified R9 270X with disabled TMUs but it contains some tech available in high end GPUs like the 290X. Coupled with at least 5-6GB VRAM that is able to be fully utilized (GTX 970/80 has 4GB VRAM on 256 bit GDDR5 bus) it won't suffer from memory issues. Performance will improve quickly over time as the PS4 is more refined with lower OS memory overhead and GPU optimizations. Bear in mind that the PS4, even as of now without optimization, is faster than the majority of consumer PCs.

The PS4 has the capabilities to be on par, if not faster than a $1000 computer at the time of its release. Prices have gone down since then and newer tech has released (GTX 9xx). A PS4, for example, costs $500 in Australia and you'd be hard pressed to build a computer that has similar performance for the price. My PC cost $1200 and, while it can be considered faster the PS4, it is over $1000.