"Someone with enough money to purchase a high performance aircraft for
cash
would have tax accounting resources at his/her disposal to be able to
structure the purchase as a business purchase. "

I do have enough money to pay cash for a plane but I still can't make
it a business expense. My business travel schedule doesn't work well
for Mooney flying. I would have to actually make business trips in the
Mooney. As I recall, you just document that 51% of your trips for
business related. I did incorporate my Mooney but the corp doesn't
generate any cash (other than what I put in every month ).

-Robert