Voodoo 2 12 MB!!!!! - OMG $$$
Geforce 2 MX onboard - original nForce in a beige Falcon Northwest Talon system
8500 64 MB - $130 new clearance @ BB - different drivers for different games! Things have gotten much better since 2003, right?
9500 Pro 64 MB - $130 new clearance @ BB, used for almost 2 years!
9800 Pro 128 MB - $80 used, Doom 3 caused me to sell it after about three months.
6800 128 MB - NewEgg, not sure - It rocked Doom3, which I hated and only used as performance benchmark.
6800U 256 MB - $400 (!!!), NewEgg
5900U 256 MB - $50 John Deere Swap Sheet (was in college and realized that I couldn't afford the entire rig the 6800U was in

)
6600 256 MB - NewEgg, Passively cooled, ~$100 I think
7800 GT 256 MB - $345 new on launch day!

6800 GT 256 MB - ~$200 fs/ft (sold it later for $170, was defective on delivery, had to eat $170 loss

)
6800 256 MB - ~$100 NewEgg
7900 GTO 512 MB - ~$230 NewEgg - used for almost a year!
3870 512 MB - $130 clearance @ BB (full circle!)
4830 512 MB - $70 fs/ft - used for almost two years!
4830 512 MB (xfire) - $60 fs/ft
5870 1GB - $200 Newegg
I got married and card purchases slowed down

To be clear, this is only my main rig listing... Pretty sure there was an x800xt PE in there somewhere, I just don't remember where, exactly
