I fail to see if the type had trouble operating profitably 25 years ago that they can do so now.
Really?
Shhhhh, don't tell DAL about this.
They had (IIRC) 69 of these Lockheed three-holers, and according to a senior VP I spoke with just after they retired the last one (his words, exactly)..."The L1011 made us more money than any other airplane, ever."
Not so bad after all...