Don't allow 3rd party sellers?

I think that is key. I used to browse Best Buy's website for various electronics and it was typically pretty good. I knew that somewhere, a Best Buy product buyer was evaluating the products with at least a minimum set of expectations. Then they opened their marketplace to 3rd party sellers and it's the same low cost, low quality crap on every other site.

But then how could you skim off the top of other people’s work?