All right, you've got me convinced it's a great bus. Now for the hard bit, I've decided to guess how much it costs to operate one of the old girls.
How about US$1500 - $2000 an hour?
I've taken an extrapolation of published fuel burn, component life, engine overhaul costs, added them together, simmered for about 6 seconds and pulled the figure out of my @r5e. How close am I?