Prime's current annual rate is the result of a 17% price bump last spring (from $119 to $139), which wasn't totally unexpected: Amazon has increased its membership fees by $20 every four years since 2014. But that's still a significant cost to eat — especially when Walmart and Best Buy's rivaling subscription services cost $98 and $49.99 per year, respectively. It may help to know that Prime easily pays for itself if you use it to its full extent. Free two-day (or faster) shipping on millions of items is just the tip of the iceberg: Subscribers get complete on-demand access to Prime Video, which has the biggest movie and TV library of all the major U.S. streaming services. (A $139 annual Prime membership is about $45 cheaper than a year's worth of a Standard Netflix plan.) You also have free rein of the Prime Music, Prime Gaming, and Prime Reading libraries, in case you somehow run out of things to watch. Amazon sweetens things even further with unlimited photo storage via Amazon Photos, plus a free year's worth of Grubhub+ that's valued at about $120 itself.