I stumbled across your website today, and I know I'll be returning here quite often (this type of stuff is right up my alley, much to the dismay of my wife).
I am from the US, and I have been collecting older video game items since the Funcoland days (I always wanted to wall-tile a room with all the Mario Bros./Duck Hunt carts I bought for $0.49 back in the day)
I have a soft place in my heart for Nintendo, and a majority of my collection consists of Nintendo-related games.
Some of my collection:
PlayChoice 10 upright Dual-Screen Arcade unit
Nintendo Vs. System "red tent" unit
Mario Bros. Upright upright arcade unit
Galaga arcade upright
Korean SNES/ USA SNES
Gameboy original/pocket/color/Advance/Advance SP/Printer-Camera
Panasonic 3DO/ Goldstar 3DO
Korean N64/ USA N64
A vast majority of my collection I have found at thrift stores and flea markets (my favorite find was Bubble Bobble Part 2 for $4 at a St. Vincent De Paul store)
Anyways, this site looks awesome!