I joined prime, too. I usually choose the super-saver shipping option, but then I figured out that the few times a year I've needed 2-day or next day shipping, I've probably spent the $80 getting those orders expedited (christmas and birthdays, etc). So, I figured, why not spend the same amt a year but get everything 2-day? So far it has worked out, and I'm much less shy about just ordering 1 CD and not going on a spree to get "free shipping". Also, the three other members of my household are enrolled under my subscription, so it gets used.

Also, I own stock in AMZN... :P