"Neil Gould" wrote ...
Since the G1000 system is modular, a different configuration of components
could be made functionally equivalent or superior to the current design of
any of its modules, so it should be able to be maintained indefinitely.
This doesn't follow the computer-oriented model of selling system
"upgrades", but that is a different matter.


Two thought provoking sentences, but I don't see how the second supports
the first.

And where (at what levels) do you see the G1000 system as being modular? I
see the "system" as almost a "single box", and when components fail or
portions become obsolete (ie transponder upgrade to ADS-B, or internal
processing speed vs newer box) it might be cost effective to just dump the
whole box.

On another line, how well has Garmin demonstrated its understanding (or
commitmant) to the fact that lifecycle of GA avionics is 20+ years? In my
opinion: not much. Or maybe my opinion is based on the above, that I don't
view the G1000 as very modular or upgradable !?!