Stu Gotts wrote
airframe parts are pretty much
available. They're really not much more expensive than Piper or
Cessna

Not my experience. A friend of mine just bought an older Baron.
Elevator trim tab is a bit loose, needs a new Clevis fork. On a
Cessna or Piper, that would be a standard AN part, maybe $10-$20. On
the Baron, it's a Beech-specific part. Sure, it's available. $156.

Beech-specific parts ARE more expensive, often by an order of
magnitude. Whether they last longer or not is debatable.

Michael