I'm sure this conversion is very expensive, *but* when you weight all benefits you'll have with it, it's perfectly payable!
- One man less on the cockpit (one income less at the end of the month)
- Less maint. (Glass cockpit's are much more easy to work than old "steam gauged" ones)
- More automation = less crew work = more time for the crew "watch" the aircraft do its job = more safety
- great integration with the MD-11 (I ever heard that a same crew is able to fly the MD-10 and MD-11 - same type rating)
So, if you have a big DC-10 fleet (like FDX), it's perfectly payable. Needless to say too that's cheaper than buy a MD-11!!!!