I guess that tells you all you need to know about what the insurance
companies think about low time pilots in plastic planes.

What does it have to do with plastic?

In any case - I am not asking why the premium is high. The question is
whether it makes sense. I assume that experience multiplied by cost is a
constant? Are you insured *primarily* because
-it saves you money,
-it gives you good night sleep
-it is what everybody does?

If it's not the first two, why would van experienced pilot pay his$2K/yr
if the risk in the air (unlike on the road) is largly under his/her control?