Quoted:
Ask yourself this question: Do I NEED 500 rounds of defensive ammunition?
Obviously, your answer is no, unless your profession involves escalating force and handguns.
Now ask yourself this question: If I only buy 50 rounds of defensive ammo, how much MORE practice ammo can I buy with my savings?
That should satisfy your need to save a little in these fiscally scary times.
If those don't get you anywhere in your decision-making, one more: Do I know where to shoot a man, and can I get combat-accurate hits with the ammo in question?
Actually he probably does need 500 more than someone who's job is "escalating" force.
1 gun––100-200 rounds to ensure proper feeding in his gun.
75 rounds for a basic load and a few spares
shooting a mag of carry ammo at least twice a year.
The guy with the escalating use of forc3e job carries what the boss gives him(usually I once had to buy my own duty ammo). If it does not work in his gun he buys a new gun or gets a policy exception from the boss or gets issued a new gun(despite rumor to the contrary most agencies do not issue you a gun).