Which is why I only rent cheap, elderly airplanes, even though my FBO has a
stable of new G1000 172s. I continually wonder why everybody else flies them,
because the last time I checked (just a few weeks ago) AOPA would not even quote
you on enough renter's insurance to cover one.

What part of the AOPA renter's insurance exempts G1000 aircraft?

The fact that it tops out at $150,000 or something along those lines.
The G1000 equipped aircraft have hull values in excess of that.