Any online source is a risk. I've never been ripped off using Ebay, but
others have - so the buyer should check out the seller in as many ways as
possible (such as the feedback comments, how long the seller has been a
member, asking the seller questions, etc.). The dishonesty does not come
from Ebay, it comes from the Ebay seller.
You might try
www.superpawn,com. I bought a nice camera from them recently.
Good luck.