You know, I can't say enough good about a pre-purchase inspection. I did two pre-buys before I bought POO. I asked that an annual inspection be done on each aircraft - but without the repairs. It cost me $850.00 on one C172, and $650.00 on another one. I walked away from each of those two airplanes. It was $1,500 well spent. Next time I buy, I'll do it again.