[wvenable]

> Well, the argument is that if you don't like eBay it's easy to just go make your own.

The argument isn't that it's easy, the argument is that it's possible. There is no guarantee of success but you can try. Why even start Facebook when we already have Myspace?

There are actual physical impediments to building your own ISP and natural monopolies involved. By comparison, just a lot of people using something doesn't make it monopoly.