I think it is worth giving it a try to see what kind of response there is.
Of course, the geographic issue is the limiting factor.  I am temporarily
located in Oklahoma (hot and humid in summer) and the left and right coast
get-togethers are a bit far for me to go without having an extended period
of free time for driving (and the money for gas).  The idea of shifting the
gathering to different areas sounds good in theory, but how many people will
still be able to make the long drive on years when it is far away?    Banff
is nowhere near "central" in location in regard to North America.  Lincoln,
Nebraska appears to be (on Google Earth) about as central as you can get -
just to use a city as a landmark.

Maggie
'85 Subaru-Westy "Anne Bonney"