Mxsmanic wrote:

sparingly.

So how many hours a month does the average private pilot actually
spend with the prop turning?

It depends. The problem I have had was that either I could
afford to fly a lot, but didn't have the time; or had plenty
of time but could no longer afford it. Eventually it evens
out. Ideally, I'd like someone else to foot the bill, that's
what I am working on these days :-)

--Sylvain