P2pbazr in itself is not a product, nore a service. After all it’s another virtual service layer put over the Internet. Not as simple and technical as e.g. Mail or WWW but very similar in its effect to world wide business, may it be big or small.
Not only eBay but every other Internet shop product or service will disappear because it will be no longer needed. Or they have to derivate and adjust to p2pbazar. But this is not the point to be discussed here.
After all, why should somebody pay for a free product? And selling (and buying) over the Internet has to become free finally.