I like you, pay off mine at the end of the month... It seems the percentage of people who do that is around 40%... which seems maybe high...

ALso don't forget, credit card companies charge at least 1.5% of a fee to the retailer, this is why some places (usually gas stations) will have a cash price and a card price...

But yeah... lots of the perks are paid for by the rest of people who aren't paying off the balance...