S&W .500 Magnum Revolver OMG I want one...

[bimmerboodle]

short of world war 3, why would you need that many shells?

a man's gotta protect his castle from roving bands of ninjas.

you probably wouldn't, but if you did need them, they would be nice to have. I lived in St. Petersburg FL in the early 90's and there was 2 nights of riots. Several buisness owners had to use firearms to defend their buisnesses from looters using multiple shots. That is the tool I would choose.