“You have simply become terribly expensive, so much so that new purchases have to be planned rather than chosen. 64mm airframes at almost $200, 90mm at $600……wow. There are some that seem more fairly priced (the Nexa F6F, for example), but $400 for a typical EDF is really $100 too much. You’re not alone, of course. But, on the whole, being sole-source suppliers appears to have justified some unreasonable prices.”