Fact is, no one knows the commercial arrangements made on the 764 or the A342, thus no one here can say whether they were “successful” (ie., profitable) or not.

If they had “made money” the next layer of critiques would be did they make enough to obtain an “adequate” ROI? Who knows? The bottom line is that we are enthusiasts and speculators and it’s kind of supposed to be fun, isn’t it?

The fact is that the 767 line has had a pretty good run, and it is going to continue on awhile longer. IMHO, if more efficient engines were available for upgrade, it would run an quite a while longer. The airplane that ushered in ETOPS lives on!