Side note: I'm sad to see NewEgg headed in this same eBay-clone direction.
I can look up a seller to make sure he's sourced an item properly, for example, newegg sells SD cards on ebay so I know newegg is sourcing SD cards properly and I'm good to go. Or I look up a seller and they claim to be a licensed Nikon supplier I know I'm probably ok or I could even call up Nikon to verify they're a licensed supplier.
If I want something fake/cloned I know I can just buy cheap from the chinese supplier and I don't have to pay a markup to a middle man. But if I want it right away, I can order from someone in the same state as me and pay a couple extra bucks, and I know it's the clone cuz the picture is the exact same.
You get a lot of information on ebay that you don't get on Amazon.
Amazon to the best of my knowledge does make you return items for refunds even when they are frauds.
Which means it's not fine for Electronics. Their returns policy seems to be assuming that everyone attempting a return is malicious and trying to cheat them.
The lack of free shipping seems insane given how much the products already cost, and the "Return minus 15% restocking fee" really doesn't make me want to come back.
Who do you recommend for electronics?
One of the weird things about Amazon is that it doesn't give you an easy way to provide photos for the item you yourself are selling (e.g. your used copy of a book), and if your item is similar enough to an existing item (e.g. same UPC or ISBN or whatever), Amazon will railroad you toward using the existing listing (but will still put you in the "new and used" list).
In other words: the same Amazon quirks that seem to benefit counterfeiters also seem to benefit my grandpa's charity, so I guess I should be grateful and appreciative when I get a knockoff at my doorstep.