I had a friend that got his degree in "humanities". Arguably he got a very well rounded education. His degree let him dabble in a bit of everything. He was in school for five years because he wanted to take extra classes, and then decided he didn't want to go to graduate school. A year later he still hadn't found a job he liked that applied what he had learned. He was favored for this job, and for advancement opportunities in the company, because he had a college degree. However, he wouldn't use anything he learned in college in this job.
I know many people like this. I'm not saying this is a bad way to go. Some of them are happy, some are not. Either way though, the extra year in college didn't help them other than satisfying their intellectual curiosity. If this is important to you, and you have the money to float the bills, I say go for it. If you have to take out loans and run up debt, it isn't worth it in my opinion. While these people are putting food on their tables, it isn't necessarily due to what they learned, but rather due to the fact that they were able to show that they were capable of learning.
blah... I'm just spouting my opinion anyway, and I'm really not trying to pick a fight. I'm just trying to convey what I would do in a situation. Take it for what it is worth.
Ryan