Actually the only reason some folks ever could afford tritanics was the fact that the RB-211-524 series engine although high-tech, was a mx nightmare..unfortunately bolted to another high-tech mx nightmare of an airframe, but beyond any reasonable doubt, the most enjoyable 5000 HRS+ i EVER SPENT IN AN AIRPLANE...so let's blame it on the Brits...or the accountants that "amortized" the cost of writing them all off..mmmmmmmmm