Ugh, I'll probably get killed for this. (More so sold then traded) I'll try and point out the rare games I had for each system.
NES
2 NES II's with 4 dog bone controllers
A few original NES's
Countless random controllers
Over 300 carts including Dragon Warrior 3,4 Super Dodgeball, Maniac Mansion, Bubble Bobble.
Genesis
System with a bunch o' accessories.
over 60 games
SNES
((
Original system with accessories
Over 100 complete games including. Earthbound, Chrono Trigger, Final Fantasy 2,3, Breath of Fire 1,2 Lufia 1,2, 7th Saga, Secret of Mana, Super Mario RPG, Super Punchout, Super Metroid, Aerobiz Supersonic, PTO...
Sega Nomad + Super Battery Pack
Sega Master System (Complete) with 5 games
Turbo Graphix 16 complete with Streets of Rage/Bonk/some ninja game that I forgot the name.. but was great.
Original Gameboy with over 20 complete games. Zelda/Mario Land 1,2/Metroid 2
Jaguar (complete) with Aliens vs Predator
N64 with over 60 complete games
Over 100 Xbox Games. Including Marvel vs Capcom 2/Baldur's Gate Dark Alliance 1 & 2
Virtual Boy with Mario Tennis
Donkey Kong Mini Arcade Game (The mini stand up)
Sega CD
Sega 32x (actually I don't miss this though)
Atari 2600 with 50 games
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On the bright side I still have Xbox/Xbox 360/PS1/GBA/Dreamcast
Probably be selling all the GBA stuff soon though.