Hmmm, let's see. I am a retro gaming freak myself, a gamer since the late 70s. Managed to pick up the following:
Sony Playstation 2 boxed - 50p
Sega Megadrive boxed with 10 games - £5
Matching TV stand for my old TV - 1p
All of these above were from a shop, with full guarantee
Other items, more photography related:
Size 10 leather jacket for models to wear - £5
Wireless flash transmitter/receiver - £5 (Works a bloomin' treat)
Hoya circular polarising filter - £3
Always in search of a bargain!
Two Sea & Sea YS90 underwater flashguns rescued from the rubbish on the livaboard I was on last year after a japanese photographer was chucking them because they were dead.
When I got home I tested them & they worked perfectly.
Cost when new £600 each