Just a share...
1. If you have PC that still serves you well, be contented. Be happy ^_^ Upgrade only. Spend wise.
2. If building a new PC, consider the price point and performance. Latest doesn't mean it is also the greatest.
Even though it seems Ive been left by the tide of technology (Im still using FX-60 939 setup and still it works well), Im always contented with my AMD setup. Even though I could be easily beaten up by the C2Ds benchmarks, what matters most is how well your PC serves you in a long period of time.
Those rich kids probably dont face these kinds of decision making in setting up a system, upgrading or replacement. Whenever a new CPU or PC part comes out, they need to have it.
But for ordinary consumer like me, Id like to be more money wise. Not the latest but serves the greatest.