Thought I'd chip in: I've wanted to fly since I was a child, I have a job I love but it doesn't have high pay attached. It's only in the past couple of years I have been able to afford to fly. I chose microlights (I'm learning in a C-42) because it is just so much cheaper. I love the aircraft and don't feel I am missing out on much; I reckon once I have my license I will be able afford to do twice as many flying hours as in most GA aircraft, which is just as well as I'm addicted!
I had planned to get the house/mortgage thing sorted out before I started flying (I'm still living with my parents) but then I worked out how old I would be before I would actually have paid off the mortgage! Not Good! So I decided to get my priorities right and follow my dreams first
(plus I won't reach retirement age until 68! I couldn't wait that long untill flying!)