Good point Metro. When I did my flight training, I saw a lot of young people who had parents that could afford to pay for their flight training. I have nothing against parents supporting their kids and hope to be able to do the same things for my children. But in many cases I found that most of the younger students didn't really appreciate the gravity of what they were doing, partially because they weren't footing the bill. One young lady was the daughter of a 777 captain who is also a great guy in general. I think her mother is also a pilot. But what I noticed is that she didn't seem to take her training that seriously even with having that type of exposure.
I wish I had that same opportunity growing up and maybe I would have started flying at 16 instead of 29. But I believe that doing it at this stage in my life, given my current level of maturity and having the pay for it myself, gives me a better appreciation for such an awesome activity.
TXCAP and D gave some pretty realistic numbers for what you can expect to pay back. I just consolidated my undergrad and b-school loans and I currently owe about $90,000, which is spread out over four degrees, although in all fairness my employer paid for the one of them. Even given the very favorable rates on student loans, most people in my position are paying back anywhere between $500-$1000 in student loans. I don't have a car note, but live in the NYC area so pay a lot for rent. But I also don't have a family and I do make six figures, and the loan payments still hurt.
While I look at the planes flying into Teterboro, Newark, and LaGuardia on a daily basis and think how great it would be to do this flying thing full-time, for me becoming a CFI to build the hours and then to start at the bottom of the ladder is a very negative Net Present Value proposition. So I'll just have to be satisfied renting for the moment, working on the IR, and maybe buying a plane sometime in the near future. Anyway I'm almost 31 so while it's not out of the question, my desire to have a family someday soon, once I find the right woman, forces me to rethink my priorities.
But best of luck to you guys that are still young enough to do it, and who aren't necessarily faced with the decision to leave higher-paying jobs to follow your dreams. But to XLR I would suggest, as numerous others have, looking at a local FBO and doing the PPL there. At least you can make an informed decision about the rest of your career trajectory once you're in the community of pilots, even as a student. Best of luck in whatever you decide.