I have six! However when I took economics (dropped out), I had a fair bit more. It was alternate, so one week I'd have about 10, the next week about 18 or something. It may have even been more than that actually.
It doesn't really annoy me. I don't really think about the money thing, I just accept I've got to pay it no matter what subject I'm doing, but sure you could say science students get more for their money. I prefer to study in my own time rather than have compulsory lectures/seminars to do, but I think everyone is different.
I don't really see the point in leaving to start again next year just for the sake of having five more hours contact time. It doesn't mean it will be a better course.