the eBay analogy would be that nothing stops people from posting the exact same product on multiple sites at the same time. If I were looking at something on eB

the eBay analogy would be that nothing stops people from posting the exact same product on multiple sites at the same time. If I were looking at something on eBay, and I could do a quick google to find that same product on another site for 15% less, eBay will very quickly find themselves in trouble.