My local game store had a "Gamer's Exchange" today, kinda like a flea market for video games. Lots of over priced stuff, but some really good deals if you're willing to look.
Got this lot for $31 (with $5 coupon for liking on Facebook). Price is combined, items from 4 different vendors.

Individual prices listed:
Final Fantasy II Famicom - $5
Batman Famicom - $5
Battletoads (some label damage) - $9
Phantasy Star II (label damage) - $6
Shadow of the Beast - $2
Sword of Sodan - $1
Ecco the Dolphin Complete - $2
Donkey Kong 64 - $15
After haggling, I got the total for all down to $36, and then $31 with coupon.