In the late 90s the company I worked for wanted to move premises and drop their dealings in importing consoles and software (focus switched to Playstation exclusively). I was owed some Holiday pay and had moved all the wanted stock myself. In return, my Boss - more by mistake than design - agreed that I could take all the old games related stock in lieu of any payment due. So I did.
It included (all brand new and boxed - much still in outer cartons too) -
3 x US Panasonic 3DO
3 x UK Panasonic 3DO
12 x UK Sega Megadrive
3 x Japanese Sega Megadrive
42 x UK Sega Megadrive 2
2 x UK SNES 'Killer Instinct' Pack
2 x UK SNES 'Mario Allstars' Pack
2 x UK SNES 'Donkey Kong Country' Pack
2 x UK SNES 'SFII Turbo' Pack
2 x US SNES
2 x Japanese N64 (w/Scart RGB)
8 x Atari VCS 2600
8 x US Atari Jaguar (w/Scart RGB cables)
3 x UK Sega Dreamcast
2 x UK Sega Saturn
1 x Sharp MZ80K (!)
2 x Commodore 64 (with Cassette deck!)
3 x Nintendo 'Donkey Kong Circus' Panorama Game & Watch
3 x Nintendo 'Crystal Climber' Game & Watch
In various quantities there are also multiples of every type of gameboy (from original to Advance), Atari Lynxes, countless Joypads (Jaguar included), Adapter carts for every system, Boxes, and boxes, of cartridges and discs for everything, posters and display stands (with TVs), promo items and accessories. Since we also did mods and repairs, I also got boxes full of repaired unboxed consoles, joypads and carts.
At the other end of the scale, I paid over 400 quid for a brand new, mint, boxed & unopened series 1 ZX Spectrum, even though I already had quite a few. I wish I could bottle the smell from it.