Generally a fan of Prime. I’ll admit the shipping is pretty addictive. The rest of Prime is pretty meh. It’s a good deal on shipping and then a bunch of second-rate other stuff tacked on. On both .com and AWS, Amazon is reaching a stage of maturity where they’re running out of new customers. While still a fan of both, they’re both getting annoying as innovation slows and they get more annoying with a focus on doing t…
It is and it isn't. The cost of shipping is built into the price of most of the items. You get a good deal if you buy things where pricing is more or less fixed, or if you buy things one at a time, but if you purchase several items at the same time, you can often save money if you purchase from a vendor that has better unit prices and charges shipping, or offers free shipping with a minimum order.
I see this all the time with my hobby purchases. Amazon has everything (mostly), but it's more cost efficient to put together orders of multiple parts at other vendors. Sometimes just one part at another vendor works too, if it fits in an flat envelope and they charge appropriately for envelope shipping.