No. By selling it for $2, they have to deal with the credit card/whatever fee, Wich is typically 2.9%+30 cents, so they're already down from your $2, and then they have to staff customer support to deal with any sort of problems that crop up. Which makes it not worth the < $2 they'd get from everyone in that category.

100 paying customers in that category is still only $200, which isn't even enough for groceries for a family for a month. and for how much hassle?