Will Gamestop buy my Nintendo DS Lites?

Ok so today I found my 1st ds lite and I am planning on selling my current ds lite (Triforce Gold Edition). However, I should add that it is a fake :( Yeah Ebay really screwed me over. Anyway, I want to know how much they would give me for both. Consider that for one I don't have the stylus and it's in decent condition. Also I have both chargers. And isn't there a thing going on right now for 25 dollars extra for trading in systems?? Also please consider the rate that they'll give you for a DS Lite if it's toward a 3DS....which is what I'm trading it towards. So for the Triforce one that's fake; will they buy it if they know it's a fake? Will they give me extra if they think it's real? Thank you so much for reading all that.