prime doesn't even make sense anymore for delivery. i got rid of it years ago when they would keep delaying deliveries for a week that were 2 day guaranteed. turns out when your business model depends on having a manageable amount of customers then eventually you can't actually keep up with demand. if I'm going to wait anyways and be gaslit by made up estimates it's better to just order direct from manf and remove the gaslighting bit. and in the case where an item is only sold through Amazon, they already offer free shipping for large orders or it's $6 and they have to refund that if they break their guarantee instead of me paying hundreds to be refunded with audible credits?

why do people still use prime for delivery, is it just to feel secure?

Actually , the paid tier of amazon has ads. Yes. You pay AND watch ads.

Sorry, it was a rhetorical question. As in "Amazon feel it's reasonable to charge us and then advertise? Because it's not."

100% serious. The whole screen becomes a still image Ad for a product with a QR code fixed in place on the right side.

If you wanted to pause a movie to read a detail on screen like I did, you get a full screen ad instead. It was quite a surprise.