How much is my wii and wii fitness board worth?

I have a rarely used and adult owned wii and wii fitness board with Madden 09, Wii sports, Tiger Woods 10, Decca Sports and the game that came with the fitness board. I want to put it on ebay what should I set the reserve at?|||shame you're selling your wii, lots of great games have came out, anyway you'll get the amount you bougt your wii with