50 dollar Amazon card cost me about 39, roughly 21 percent off

Quick data point since people always ask what the discount really looks like. I bought a 50 dollar US Amazon card and paid about 39 and change, so roughly 21 percent off face value.

I topped up credit first on the site, then bought from that balance, and paying out of credit meant no extra fee on top. US dollar cards in general seem to run up to 25 percent under, but the exact cut depends on the brand, Amazon was not the deepest one I saw.

Worth flagging it is not an official Amazon reseller, you are buying through a store, and the card is region locked, so a US card wants a US account. Also top ups start at 40, so you cannot load just a few dollars to test.