Ebay is awesome.. I mean what the heck are you talking about? Read the reviews. If the guy has a good rating then you'll be okay. I did have one problem with a scanner a guy sent me.. however, he gave me a full refund and let me keep it lol.
I don't think it is unusual. You can find many good sellers on ebay. I bought so many things off ebay.. from historical military pins and medals, to a 21" television that was cheap but good...
well loads of ebay users have scammed thier ratings. tehy bought from thier own other accounts to beef up thier ratings. beware of that! people do that everywhere.