It's pretty easy to avoid the enormous introductory level lecture classes. Nearly every large university will grant credit for AP or CLEP exams towards undergraduate level classes like Econ 201. These exams cost under $100 for an entire course.
You can also find many schools offering these courses online, for a bit more money. Transferring in a credit is painless.
You can also find many schools offering these courses online, for a bit more money. Transferring in a credit is painless.