Ivy Bridge is designed for the energy crisis that is coming. The new thing is energy conservation. Compare the 2600 sandy to the 3770 ivy. Same processor. Except the Ivy does the same mhz with a little less power. Some complain about OCing a 3770 is not as good as a 2600. Well I have seed the worlds record over clock a 3770 to 7 ! On that note, if you have liquid nitrogen and are a freak then, you should shift gears to a hex core 3960k and be apeshit crazy when the Haskell or whatever it is comes out. 2011 socket you mentioned.
Look at it this way. If you are doing complex computations like trajectory to Saturn with a lander on a 10 foot by 10 foot area, you will need a computer that can take 6 days of computations and spit it out in 3 days. Saving hundred of dollars of man time. If you are playing video games or editing video I think even a z68 platform will get you there. I bet if you went up to hollywood you would see 3 year old computers doing the job. The 2600 is on sale this weekend for about 250.00 bolts nicely on a z77 platform combined with 32gb of ram and a nice Gpu you will not look back. That is my view on it. I came off of the x79 platform and a hex core after realizing that spending 1200 more on my rig then the z77 platform with 3770k, ssd drives and a quadro 4000 2gb GPu and only using 1/2 of the available space for ram. (16gb with 32 available) My computer edits video and whatever I want it to do. Sure I could spend that 1200 more and save myself 30 minutes of month in rendering time. But I go to the restroom or make a sandwich. Time management. If I want I can add another 16gb of ram and shave 10 minutes a month of it, I am sure. Hope this helps.