Haswell build vs Ivy Bridge build

[Fatalis]

I'm making my 2nd build in August and going from a 965 to either Haswell or Ivy Bridge.
Here is the 3570k build
PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($217.98 @ Outlet PC)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.98 @ Outlet PC)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard ($134.98 @ Outlet PC)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory ($70.33 @ Amazon)
Storage: Samsung 840 Pro Series 128GB 2.5" Solid State Disk ($126.99 @ NCIX US)
Storage: Western Digital Caviar Black 1TB 3.5" 7200RPM Internal Hard Drive ($89.99 @ Newegg)
Case: Corsair 500R White ATX Mid Tower Case ($107.99 @ NCIX US)
Power Supply: SeaSonic 650W 80 PLUS Gold Certified ATX12V / EPS12V Power Supply ($127.98 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($16.99 @ Newegg)
Total: $913.21
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-07-23 17:43 EDT-0400)

as opposed to the 4670k

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-4670K 3.4GHz Quad-Core Processor ($225.49 @ Amazon)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.98 @ Outlet PC)
Motherboard: Gigabyte GA-Z87X-UD3H ATX LGA1150 Motherboard ($159.99 @ Amazon)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory ($70.33 @ Amazon)
Storage: Samsung 840 Pro Series 128GB 2.5" Solid State Disk ($126.99 @ NCIX US)
Storage: Western Digital Caviar Black 1TB 3.5" 7200RPM Internal Hard Drive ($89.99 @ Newegg)
Case: Corsair 500R White ATX Mid Tower Case ($107.99 @ NCIX US)
Power Supply: Corsair Enthusiast 650W 80 PLUS Certified ATX12V / EPS12V Power Supply ($82.98 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($16.99 @ Newegg)
Total: $900.73
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-07-23 17:45 EDT-0400)


So as of right now the Haswell build is 10$ cheaper than the Ivy Bridge.
Keep in mind that this build is going to be for gaming and I'm hoping it holds me over for The Witcher 3.
Also I am using my 7850 2GB model from my current PC until I buy a newer card next year.

 

[Outlander_04]

The IB build is a lot cheaper than it appears because you have included an overly expensive power supply

 

[Fatalis]

True.
Let's say that I replaced the PSU and gave them both the same one. I'd end up saving around 45$.
If that 45$ isn't all that important to me to have an updated socket would Haswell be worth it over the Ivy Bridge?
I plan on overclocking either one and I've heard IB chips overclock better so I'm wondering if that alone would be worth buying the "dead" socket.

 

[Outlander_04]

IMO buy the latest technology you can afford and have the longest support and update life

 

[Fatalis]

So if money isn't really an issue go for Haswell?
I know it isn't enough of an improvement for IB users to upgrade to but is it a good chip to jump into if starting a new build for playing games?