mmm, unrelated to games themselves, a 48" 1080p tv via dumpster diving. price tag: $0. completely functional.
related to that: i also found a genesis (1st gen one too) and NES in the ditch... both still worked and had their cables tossed with 'em. the NES just needed a quick 72-pin replacement and a controller~
really, all my best deals are from dumpster diving, regardless.
otherwise, i got a slim xbox 360 for $50 the other day, which was pretty nice. thank the sun for meth addicts~
a psp and a stack of the games for it for $50... i flipped the games to pay it off, and this was when psps were still like $100.
i can't really think of anything else. these deals aren't the best in the topic of course. but i don't go yard saleing or anything. sometimes i get lucky and find games for pretty cheap, but never super cheap or anything. my idea of a good deal is "thank god i found all these games for really cheap in one place"... so, under ebay prices and such, all in one place, in good condition. that's how most of my ps2 collection was found, actually... someone dumped their ps2 rpgs at gamestop, so i was getting games worth $35+ on ebay for gamestop's $15 prices or whatever. being able to get a stack of games for cheaper than typical used market price is a better value... time is money, after all, and i have too many hobbies to spend a lot of time 'on the hunt'.
edit: oh, oh right. twilight princess, wii version, for 8 smackaroos from the pawn shop was a pretty awesome grab ngl