Number one, 150k is way too high. If you spend that much, you are either 1) your parents have too much money to burn, or 2) you went to some incredibly expensive college and FBO. I would say 100k tops, and at least 2/3 of that should be college expenses, not flight training.

That lowers it to about $1,000,000. Now we have to remember that inflation grows at a rate of about 3%+ a year, so that cuts it almost in half again to around $500,000. Divide that over your 40 year career, and you could make $12,500 a year......

Or you can go to college and make a lot more.
I will let you decide on that one.