How much can I get for this wii?

Im trading it in. I brought it back in 2008. I have one wii remot One nunchuck Wii sports Wii remote sports bundle 16 games : Nba live 08 Animal crossing city folk Mario kart wii bundle Guitar hero world tour guitar Guitar hero world tour video game Drawn to life Call of duty world at war Game party Dead space extraction Avatar burning earth Avatar into the inferno The sims 2 castaway Spore hero My sims My sims kingdom Super paper mario. Its all for a ps3. Im also trading it for gamestop. How much would gamestop give me. Everything is in really good condition