I agree with Steve. Keep in mind, though, that if you go over 150 hours per year, you are going to be doing a second 150 hour, which will increase your maintenance costs substantially. My maintenance costs are typically less than $50k unless I am doing something unusual-- this year, I'm doing hot sections and did some avionics upgrades, so it's nothing like a normal year. And gear and props are another one... if I have gear or props as well, then $50k isn't crazy, but those are only 5 years each.