I was in Game Xchange yesterday looking around. I noticed 3 NES games behind the counter. So, naturally I asked about them. The guy in there said they didn't work. I asked what they wanted for the broken games.
I walked out with T&C Surf Designs, Legend of Kage, some other common I can't remember right now for the low low price of FREE. I've only met 1 game I couldn't get to work. I'm going to bust out the alcohol and q-tips when I get home today.