I love Prime, and have been a member for quite a few years now. Started as a student, when it was half price and cheaper to begin with, maybe $30 a year I think. I buy A LOT off of Amazon. Music, of course, which I have in droves, some TV series, movies, clothes, electronics, and all other sorts of odds and ends. Basically, if I don't need it the same day Amazon is basically the first place I go.
Last year I found out I could get a report of everything I've ever spent at Amazon, and my lord... big fucking number.