That introduces enough friction that I don’t want to bother buying there. I’ll just pay more and wait longer for a product I know is genuine.

Oh, they’ve been banning customers for too many returns! https://motherboard.vice.com/en_us/article/zm8mde/amazon-ban...

At no cost only considers the monetary value of the actual shipping. That does not consider the time (and usually gas) of me taking a trip to ship it back.

All prime is like that