One thing we haven't touched is that many airline managements seem to actively dislike their flight crews. Just look at the way they treat them..... Clearly viewed as grit in the operation.... arguing, moaning striking, need constant management (time and holiday allocation), training and RETRAINING....,sim costs, pensions......
Then just think of those lovely, quiet, obedient machines. Buy it and that's it... even updates itself...... and the bosses can concentrate on screwing cash out of the SLF and their bonus package......
I said 50 years...... maybe 20 will be more accurate........