I still swear by my 2500K, 3570K and 4770K systems
They've aged so well because all the way back then they still achieved 5GHz+ clock speeds, and with high speed RAM they can still handle modern games just damn fine (60+, but definitely not great for high refresh displays)
We got stagnant for so long with both CPU and GPU on the AMD/ATI side that we got almost no changes each year, and now we've had a few with massive generational leaps it gets fun to see some people think 10% is crap, while the older people think its fantastic