I had a Q9550 overclocked to 3.77ghz earlier this year. Sold it off and just now built a cheap AMD 965 BE overclocked to 4Ghz. If I had more money to play with I would have went with a 2500 but these days I dont need all that power.
A q9550 @ 3.77 is just as fast if not faster than a AMD 965 @ 4.0? why?
Still using my Q6600. The only thing I dont like about it is the 100 watts idle power at the wall socket. But I'm not spending $300 just to reduce it from 100 to around 50. lol. But as others have said, the actual cost minus the resale profit would only be $100. Perhaps even less if I waited outside a microcenter on black friday. I must admit it is tempting to upgrade to a 2500k and 8GB of RAM for only $100.
Q6600 --> i7 860 (Lynnfield) (mysteriously not in your chart) --> i5 2500k.
Q6600 G0 @ 3.4ghz is my favourite CPU of all time. Personally, I don't think you timed your upgrades that well. It would have probably been better to grab 2500k and skip IVB until Haswell. I feel like Haswell is going to be a huge upgrade over SB/IVB since it's a new generation from Intel, while IVB is just a refresh of SB.
If you waited this long and your chip clocks pretty high, I honestly feel like you can wait until Haswell. The current 1155 socket is almost half way through its life. Just my 2 cents. This weekend MicroCenter is going to have 2500k for $149.99. Might be a good deal esp. since Q6600 can probably be sold on EBay easily.
I should have put separate choices for 1156 and 1366 but aren't they both Bloomfield? My brother just offered to trade my q6600 for his Phenom II X4 since he doesn't game anymore. Is it worth the hassle of switching with IB so close?
I may holdout till Haswell in 1Q 2013, if games still run on this quad relatively well till then.
I went from my Q6600 to a 1090T just the other week, probably because I'm full retard 50% of the time, enjoying having something different than 90% of my friends though (most if not all on 2500k's), I take the piss most of the time by asking them why they only have four cores and not six, always sparks conversation.