Once heard a figure of 250 grand being suggested for a Metro a/p, so I guess in some cases the cost would also be a factor. I guess not a big worry though as was said the operators have two pilots on these a/c....
Now is this figure to be doubled in the case of needing two autopilots, or is it one unit with two channels? (or whatever they call it, don't pretend to know much about this sort of thing)