The 200s can't be in operation too much longer with fuel at present prices. The price per hour that an ACMI carrier can get for them (about $4k per hour?) is certainly squeezing an already rock-bottom maintenance budget (which the freight outfit pays for, not the customer). Further considering that it appears that the FAA has no serious interest in maintenance at these outfits, it's not hard to see where it's heading. IMHO.
Draw your own conclusions.