There is a couple of ways of looking at 'plane ownership. You might firstly do a cost benefit analysis, and determine the economic costs associated with ownership vs rental. But secondly, and more relevant for me, are the intangible benefits which have to be considered. I do approx 100 hrs a year, usually in flights of about 1 hours duration. I want a 'plane to be available when I want it, not when it is convenient for the school. I wouldn't see myself investing much time in cleaning school planes, but I can be found regularly washing my own on days when the weather makes flying impossible. If you own your own 'plane, then for good or bad, you are master of your own destiny. Some people are content to visit the local art gallery, others want paintings on their own walls. That is why I am buying a new Thruster.