Located in Los Angeles, California is a good looking 1999 Aprilia RS250. The description is very lacking, but, the Red Bull scheme is attractive. Based on the photos and description, the asking price of $4,700 seems market correct. If you’re in the market, have a look at the Craigslist ad here.
Update: This post is pretty outdated. Check out these Aprilia’s on eBay right now: