Well, I'll give you gamestops prices b4 they stopped taking the stuff a couple weeks ago(how much they sell them for)
Game Boy Color system $9.99
Game Boy Camera $4.99
Tetris(original) $4.99
Pokemon Red, Blue and Yellow $9.99 each(yeah I know...alot of games for older system are this way- same as or more than the system-example Gamecube used at GS $29.99...Super Smash Bros Melee used at GS $39.99)
Light attachment(would have been a generic accessory) $1.99