How much store credit could i get these games for?

at any store like gamestop,gamecrazy etc or a local gaming store how much do you think i could get for these games and accesories:animal crossing,animal crossing official players guide,baldurs gate dark alliance,wild arms 3, final fantasy crystal chronicles,Orphen scion of sorcery,pokemon emerald version,pokemon red rescue team,spider man 2 DS,and Grandia 2. do you think i could at least get 100$ store credit off of these games and accesories? im trying to tradem for COD 4 and MGS4 and maybe some other game