Another great thing about stockpiling is that you always have these items handy, so you'll never have to run out to the store in a hurry because you're out of toilet paper or toothpaste. I usually have no more than 2 or 3 of a certain item in my stockpile. After all, you don't want your pantry or bathroom cupboards looking like an aisle at Costco.
Stockpiling? Good. Hoarding? No.