DS-Lite Trade in Value at EB Games/Gamestop

I have an extra DS Lite (got another for my birthday) and I was thinking of trading it in at my local Gamestop and using the credit to pay part of the cost of a 360. I was just wondering if anyone knows what a DS-Lite goes for at Gamestop/EB Games?

Thanks in advance

(EDIT) I don't want to sell it on eBay or to a friend.

you get $70 dollars i just traded in mine it just got boring.supersaiyan039

Thank you very much