My area has been extremely fertile in the last few years for wild finds. I have come across somewhere around 400 carts in 2 years (some duplicates, but suprisingly not very many - I think I only have 8 copies of Combat and 10 copies of Pac-Man) and some extremely rare ones like "X-Man". I have picked up probably 7 or 8 working systems (including 5200, 7800, and a couple of non-working heavy-sixers), 20 or so joysticks, paddles, pads, controllers, etc. I have found almost all of these at thrift stores and a few at flea markets.