Academic Earth has on-line courses for credit, which while they cost $600-$950, are quite a bit less expensive than many universities. You still need to have the discipline to follow through with the studying.
RE: You still need to have the discipline to follow through with the studying.
The problem is many people think that because they graduated from college, they are now considered EDUCATED.
Few ever think that education is on-going, and a man who loves education will be a life long learner and reader ( instead of forcing yourself to read and learn because you need to get a degree ).