Where can I sell my used iPhone in St. Louis?

I'd prefer to sell it to a shop thats around South City or possibly Maplewood. If anyone knows any businesses who do this please let me know.

Many people sell them on craigslist or oodle. Don't take it to a pawn shop.

Ebay

Http://www.yelp.com/biz/ismart-saint-louis
http://stlouis.craigslist.org/mob/