I recall going from a Tandy 1000... To a Packard Bell(Pentium 60 with 16(upgraded from 4) MB RAM and like 1 GB HDD (also upgrade).
Then a Celeron 500 I pieced together cheap(used parts) in middle school. Which didn't last long! I recall building it. Don't recall what happened to it!
I blame that Athlon... I had the XP 1600+(palomino), which was 1.4 Ghz. On an Abit motherboard. First time getting DDR memory. That one lasted quite a few years. Until dual cores, etc etc.
SSDs have been the most exciting thing since then. I really don't need many cores. It's pretty insane how much difference SSDs can make even on 10-15 year old hardware.