What would gamestop give for this?

If u opened it and sell it, you would get the same price as older DS.

Ur better off selling it to a friend. Cause a little bit ago you only got $40 and about $10-15 for diamond.

the game u could get nearly $20 i got $17 on castelvania and $15 for custom robo arena a few months after they came out and pokemon will get more since its more popular

the ds idk

if you sell it on www.estarland.com

they give you about $80 for the ds lite and $18 for the game

but you only get store credit online