How much can i get from game stop for two new nintendoDS cases 1 nintendo DS and two Games?

along with a pair of official nintendo DS earphones and a playstation 2 with six games including guitar hero and guitar hero guitar with two regular ps2 controllers (gutiar hero legends of rock)How much can i get from game stop for two new nintendoDS cases 1 nintendo DS and two Games?
20 bucks








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good makeup