How many people are you going to fly with 75% of the time? I know a few air force pilot's with Mooneys and they enjoy them (economical for a certified retract, long legs, good TAS cruise). I have a RV-6 and RVs are some of the best flying and cost economical airplanes ever. The best part about the RV is there are so many of them you can easily find someone that is an expert nearby. Like hindsight was saying, the experimental world has all of the benefits right now with little drawbacks (Eg. you cant use an experimental for hire/compensation) but you can change just about whatever you want. Want all glass or an autopilot? it's "cheap" and you can do it yourself. If you make a major change like a different propeller the FSDO just signs off on it and you fly a few hours of test flying.
PM me if you have any questions but www.vansairforce.com forums is your friend.