I love instructing because I can pay my bills ontime and I love to pay bills ontime
I don't have the hours for any other kind of job other than instucting
Instructing is what I have been trained to do, and I do it best.
I always wanted to fly and I'm flying now...at least three times a day
I think that these statements cover most of the possible answers that an instructor can give, and I'll add...the bigger the aircraft the bigger the problems you have to deal with.