I usually pick them up on Amazon. I'm going for popular "good" games at the moment, and these tend to run anywhere from $5 - $30 depending on the condition. Mos

I usually pick them up on Amazon. I'm going for popular "good" games at the moment, and these tend to run anywhere from $5 - $30 depending on the condition. Most bargain bin games (movie tie-ins, less popular carts) can be had for less than $5, and then there's Shantae, which I can't find for less than $400 because the thing is so darn rare.