Ha. I just did the same thing. Got a morebeer hoodie for $10, spent $70 on other things. It was late, SWMBO was asleep, and I was drunk. What more can I say?
I think the morebeer deal of the day is a great marketing technique. They get me to check their site almost every day for that one item that is at a super discount.
I'm sure they lose money on some of those items, but they make it up because who orders just that one thing. Especially after a night of drinking home brews.