Data point: A prospective buyer just told me he had decided not to buy my
airplane solely on the basis of its not having a 430 installed.

A red herring to anyone not thinking of selling any time soon. Besides,
even the 430 installation won't get anywhere near the money back as what
was spent on it. Although an interesting anecdote, absolutely useless I
think for considering what radio to put in the plane in question.

Maybe, maybe not. I can tell you that when I was looking for an airplane
just over a year ago, I would not even look at one that didn't have a
Garmin 430 as a minimum. There are buyers that think that way and there
are enough airplanes out there with G430 or better that a buyer will
find one if it is important to him.

--
Ken Reed
M20M, N9124X