kakahuates :
what about this one? seem very good performance and price
http://www.newegg.com/Product/Product.aspx?Item=N82E16814125475
Its all relative to what you want man. $300 dollars for that isnt bad but if you can make your dollars stretch or save up for another month or so you will end up spending less in the long run. Plain and simple the Hawaii gpu is just better than the Tahiti. Is that saying the last gen chip is bad? no but the difference in some games is 20+ frames thats the difference from a slighty choppy 40 frames per second to a smoooth 60.
The rebranded 7970 shouldnt have a problem maxing out most games at 1080p and some will just need minor tweaking like turning down the anti aliasing a bit. But if your like me and enjoy modding or texture packs than the exta gig of vram sounds beautiful. Especially since my modded skyrim pushes over 2 gigs I like knowing I have more buffer zone. A quick example would be my older rig with 2x 6870s in crossfire. They kick butt, but the 1gb vram ceiling absolutely murders my fps.
another good reason to go with the r9 290 for $100 more BEFORE discounts/tax/s&h would be that you have a more feasible upgrade path. Lets say you buy a r9 280x now, 7 months from now you feel the newer gen titles are running slow on your computer sooo you decide to lateral upgrade (buy another 280x for crossfire) But now you have an insufficient powersupply bam another $130 for idk a 800w psu. Now you have spent almost $750+ IF you opt for free shipping.
Now the other scenario is you copped out the extra cash now and the r9 290s extra 28% performance jump has kept you satisfied idk 15 months. Now even though you are satisfied lets say you choose to sell that card for the R9 3xx series cards that are finally dropping. Even though you paid $400 i guarantee you someone will buy that from you no less than $200 because there are those whom would rather laterally upgrade than move into next gen and invest in another card..
So what im trying to say is yes, its more money now but itll perform at an acceptable level longer therefore making it easier to resell because its more relevant, as where you will find those rebranded 7970s on ebay for $100 in 15+ months.
r9 280x is the older chip, naturally its gonna depreciate more quickly than the r9 290.