Yes, I am an idiot. Yes, I didn't pay enough attention to my credit card bill.
Imagine my surprise to find that BigFishGames, a company I only dealt with because PA recommended them, has a monthly fee!
BigFishGames doesn't mention this - they go out of their way to hide it. The receipts don't say, "Hey, we're going to bill your credit card every month!" or anything of the sort. They don't email you a receipt every month saying, "Hey we've billed your account, look!" - they just charge it.
Just a warning to everyone else, the games only look cheap because they're hoping you don't notice the monthly fee they've tacked on.