That's fine by me since I pay for unlimited two day and the value is getting the item within two days. But what they do with the free shipping now is pretty criminal, and I think a way to basically force people into trying Prime and getting addicted to the unlimited two day gravy train.
Amazon prime is a hard value prop depending on your household size. They used to allow you to share it with "four household members", which was anyone with an email that you knew the MM/DD birthday of (meaning you could split it four ways and get $25/person prime, even if they lived at totally different addresses). Now you can only share with one other account AND both accounts share all saved payment methods, which most people who aren't engaged/married/closely related aren't going to want. The music and video and photo backup benefits are nice but it's still a hard pricetag to swallow.