Look at it this way: some people don't like dealing with stealerships, stealerships don't like dealing with some people. People often assume incorrectly that things cost more from there and a huge amount of people have no idea what you can buy from the stealerships. The high-priced ebay auctions simply take money from people that are lazy or are foolish.
Personally I think it's the duty of everyone to take money from fools, especially if they're willing to part with it, good luck to 'em!