Richard Collins wrote about this type of things 10 years ago. He
looked
at why us Mooney owners pay more in insurance than Arrow pilots and
why
Mooneys have more wx accidents.

This is all well and good, but the reality is that the Mooney is a
significantly different airplane. It's 10-15 kts faster than an
equivalent Arrow on the same engine and fuel burn, and it actually has
a higher useful load. In fact, even the Comanche 180 is faster than an
Arrow and has a higher useful load and a bigger cabin - on 20 hp less.
That's because, as I've mentioned before, the Arrow isn't really a
complex airplane - it's a Cherokee with a couple of extra levers. It
handles like a Cherokee - stable and docile. The Mooney is more
demanding to fly, and will overload a pilot faster.

In other words - it's not just the mission, it's the airplane too.

Michael