I've had it for years and absolutely LOVE it. I order soooo much from Amazon since the 2 day shipping is so handy, and a lot of the items are really good prices for Prime members. As pp mentioned, there are a lot of items that have Prime specific discounts offered. I use Subscribe and Save monthly orders for a lot of household stuff, and its really convenient to have it just show up on my doorstep, for cheaper than I'd spend at the grocery store for the same thing. Like cat litter. I hate hauling a 40 lb bag of cat litter out to my car, then lugging it into the house. With Prime, I can have the delivery people do that work for me, lol. For cheaper. You need to like ordering online to get the most out of a membership. If you don't order a lot online, it'd be crazy to spend $100 on it.