How much is a good price to sell Iphone 4?

I have a white 16gb Iphone4, I always had a case on it so it has minimal damage, just a little bit at the bottom. I was also going to include 4 cases. I was thinking 100. What do you think?

Go onto eBay and look at recent completed listings for ones like yours. Price yours just a little below the average if you want a quick sell.

You can get $190 for the iphone 4 32GB here: http://gadgetsalvation.com