[quote name='Deserter Goose']That reminds me: why do sellers list their items at, say, $3.99 and then charge $7.99 for shipping? It doesn't accomplish anything, as the listings start with the lowest price including shipping. All it seems to do is frustrate people like me when they see a low "price", then click the listings and find out otherwise.[/QUOTE]
In addition to the fees someone mentioned, there are plenty of people "not like you" who pay no attention to the shipping costs and just order it probably even thinking it is coming straight from amazon, and also the type who will later leave a 1 star review for the item instead of the seller when they figure it out.
starmask, log in to amazon, and go to your account, then settings, then manage prime membership.