what will you (OK, you can fuel auto-gas) do when they announce that avgas
will be taken from the market within the next - let's say - 12 months?

Why would *that* happen?

because it is uneconomic to produce and to transport?
or maybe it becomes uneconomic?

Given the high number of charter business planes that use 100LL, I
don't think that's going to happen any time soon.

The price may well become unbearable, however. (Although prices here
on all grades of gas have dropped 5% in the last week or two.)
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"