Not a bad question. I am absolutely in grad school for the degree. It is not, however, my first reason for being in grad school or even one of my primary reasons.

Much of what I am learning I could learn on my own by studying the books and thinkers my peers and I have studied in the classroom setting this semester; I know this to be true. The draw of graduate work (and any post secondary education as far as I'm concerned) is the opportunity to think alongside professors with a wealth of accumulated knowledge and wisdom in their particular field, and to think and discuss with classmates who share a similar passion to one's own. Learning completely on your own doesn't come close to the experience of learning from and with people who share one's passion for a particular subject.

So it's pretty disappointing when a rather large chunk of those peers don't seem to care one way or the other about real learning and application of knowledge, but only seem to care about the grade.