Satanus:
"What are they for, to defend against hoards of attacking zombie bunnie rabbits? Seriously though, i grew up w rifles, and i wouldn't mind having a cool 9 mil plastic glock."
Seriously now Satanus. First, you could go through quite a few hundred in a single shooting session.
Second, you should have enough ammo to last the lifetime of a barrel and a 22 barrel could last tens of thousands of rounds.
Third, you don't want to put all your eggs in one basket. If you lose some for whatever reason you still have a backup supply.
Fourth, it makes for a good investment.
Fifth,...you were saying something about zombie bunnie rabbits?
Villabolo