>Amazon has generic listings for everything so its hard to tell exactly what you're getting and from who. And since sellers share the same listing you can't apply any real filters to try to weed out the sketchy sellers. I don't really have a problem finding legit sellers on eBay whereas Amazon is basically a crapshoot.

Exactly!!! The legit stuff on Ebay won't be that cheap, but it is easy to find it, and distinguish it from the scammers and the Chinese counterfeits.