I could see it. It's true that the math would be more accurate as a Sigma(autionGenreNodes^2) summed over each auctionGenre. So you could see a better import au

I could see it. It's true that the math would be more accurate as a Sigma(autionGenreNodes^2) summed over each auctionGenre. So you could see a better import auto parts site, a better pez dispenser site, and a better clothing site crop up. It's more about consumer education at that point, since any one of those sites could add specialized features and services much better than ebay's generalized ones.