Well, a used Dsi is about 80$ =)
sold mine for £110, in basically brand new condition (I only used it a few times, so had no scratches on it. also sold with three (pretty rubbish) games). Used and a bit bashed up probably worth £70-ish. Look on eBay at the sold items lists to check.
$100 in GameStop
depends on the game and how old and whats its condition
It depends on what condition the DS is in
$150
30$
Well Probably between $6 and $15
DS games are worth nothing.
1034
$150
40 dollars........BUT not for sure!
$20
A dollar or two depending on where you get it.