It's been a long while since I've posted here. But, I have been seriously looking at my first airplane purchase lately. My idea is to purchase a C172 that I can provide instruction in that will pay for the costs of ownership. I have worked this out in excel and one - two students would pay for the plane and engine reserve, plus a few hours a month for personal use. I am a CFII with some experience in instruction 20 years ago. I've towed banners and flown jumpers (decades ago), but I would like to teach my daughter how to fly--she's 13 now. I feel like the 172 is a good compromise aircraft for these goals. I must admit that reading through some threads on this forum lately I am getting nervous about maintenance costs. If a plane has been appropriately maintained and annual-ed, why would costs be so high?