Assuming the Bonanza had this fancy, *adequete* lighting system, what are
the odds that the bulb of this system wouldn't burn out the moment you
flicked it on? 1 out of a 100, perhaps?

Not even close. I believe I've replaced ONE bulb (the gear down light)
on my PA-30 in the 900 hours I've had it. Light bulbs have a very long
MTBF, especially DC bulbs.

I'll put more faith in an LED headlamp any day.

A whiskey compass and venturi-driven T&S are also way more reliable
than the usual complement of vacuum pump, AI, and HI - but we don't fly
IFR that way, even though it is possible (and was done - needle, ball,
and alcohol survives in the pilot vernacular to this day) because the
workload is too high. We keep it in reserve strictly as an emergency
procedure.

Also - what is to keep you from using the LED's in the fixed lighting
system? The entire system can be attached with velcro and plugged into
the cigarette lighter socket if you so choose (not that most mechanics
have a problem approving light installations as minor mods).

An adequate lighting system is NOT fancy. It's simple. It's set up to
light everything you need lit - without moving your head or killing
your night vision.

Michael