wrote:

I suppose a better question would be: which takes longer for a goto
mount setup or cooldown.


Not really.

First you need to understand what you mean by "grab and go".

A) you want to step outside real quick and get a look at that comet,
planet, big bright DSO, open cluster, nebula, or starfield.

B) you want to head out to a dark site, but don't want to carry a lot of
heavy equipment.

If (A), then the "better question" is whether you personally will find
setting up a GoTo to be worth the additional effort, when all you want
to do is poke around and look at a single object, or a few objects that
you already know where to find using just a 1.5 degree eyepiece and a
simple red dot finder.

Personally, my experience is that I don't find it worth the effort in
the least.

Unless I'm sporting an 8" scope or larger, I don' bother with GoTo. Like
I said, with the 102ED F9 on The GoTo GEM, I just use the GoTo motors as
a clock drive. It's also nice to have the slew limits that keep the OTA
from bashing into the tripod. That way I can leave the scope unattended
even near meridian, and not worry about it. I come out, and the clock
drive has stopped at the RA slew limit. I then manually do the meridian
flip, get back on target, and continue.

-Stephen