I agree that one should not sneer at pilots flying boring old faithfuls like the C172, PA28, etc. There are very good reasons why there are so many of those airplanes around: they are simple, safe, relatively economical, reasonably fast, etc. etc.
However, I wonder if the huge 'drop-out' rate amongst qualified pilots might not be rather lower if people made the effort to get some variety in their flying. Admittedly, effort is required, but there ARE unusual airplanes out there, you just have to do some digging and not be afraid to ask.
MLS-12D
P.S. I've never flown a CAP 10, but I have little doubt that it is a better stress-reliever than
this CAP 10 namesake 