roncachamp
Final Approach
If you have all the money then feeding a turbine at 8000 feet isn't so bad. You can't go much higher than that w/o oxygen for your family which spoils the comfort thing. You don't have a lot of range burning all that fuel either.
As I said, I wanna see the country, so higher isn't much of an issue. The tummies and bladders of those aboard would limit leg lengths to about four hours anyway, it's got plenty of range for me.