Amazon doesn't give a shit if you're being hustled. If they have to issue a refund, that's the sellers problem, in all other cases they make money. There is so much junk of Amazon that's just not worth it. The only reason I ever shop at Amazon is if I truly cannot get the item elsewhere. They aren't cheaper, they're certainly not faster (in my area) and with every purchase you're at a much greater risk at getting scammed, compared to shopping at sites that don't do the marketplace crap.
In a sane world Amazons customers would be leaving in droves, and I cannot figure out why they don't.