Oh I am sure it's not everyone's cup of tea, but i just think if you have the ability and the willingness to do it, why not give yourself the added advantage in the job market and avoid having to work in crappy grocery stores all your life....
It's a competetive market out there and you gotta give yourself some sort of edge, and for many, I guess further education is the answer...
If you have some other talent that gives you a place in the world and you're happy with where you're at in the working world, go nuts then I say... it's all about finding that sweet spot in life where you have a happiness in the workplace... much harder to find and maintain than it is to say, though, you know...