So much naivety in this thread. I can understand why pre-meds think being a doctor is a great profession that people shouldn't be unhappy in, but I'm a little blown away by the pre-meds who think they know so much more about medicine than the med students, residents, and attendings in this thread that they are trying to contradict what is being said. Come back in a few years when you're a medical student, I guarantee you'll find much more truth in what armybound and the other physicians are saying. Come back in a few more years when you're a resident, and I guarantee that you will know several colleagues who are unhappy with their job, or you will be unhappy yourself.
I'm only halfway through medical school, I don't start rotations until this summer, and I know I am a completely different person than when I was in undergrad. I can already see the cynicism and unhappiness starting in myself and others. Depression in medical school is ridiculously common, something like 30% in a recent article I read.
@NickNaylor hit the nail on the head with his post, I agree with everything.
Money doesn't solve all problems. The guy may be able to purchase expensive cars and houses, but money doesn't cure depression or dissatisfaction with your career/life.