I'm not sure I follow. They are a commercial enterprise, and that's the revenue model for their product. How could someone charging a price for their product make you sick? Who is John Galt?
In drug patents, the company gets 12 years to make revenue from its innovation.. why should ebay get an eternity?
If you think eBay has no competition, or there's no innovation happening in the auction space, well then you haven't even been reading the news!
eBay proved the market. That's a really big deal.