UNFORTUNATELY you wouldn't get much because the games are cheap to buy and its a gba [ have better consoles now]
about $30 to $40
Gamestop no longer takes GameBoy Advances.
It depend if it is gamestop they will give 30 % of regular price
about 20$ for the sp and 3-4 for the games not sure about the case
$1.50
$1.
75.00
The amount of money that GameStop will give you depends on 2 things, what type of condition of the DSI is in, and the store that you are in
It's different for each gamestop... how about head over to your gamestop?
$350
$0.00
5 dollors