Peace,
I'm sure when the automation is perfect and widespread to the point that it catches and alerts on every network event, the monitoring rooms will disappear.
Which is never, but:
With a proper RCA after each incident, not blaming customers or peers (which is common) but accepting the blame, and not personally, but as a fault of failover, security and notification mechanisms to be refined, and by employing third party tools trained on big chunks of data of yours and others
— you can reduce the number of screens required for daily routine to a sustainable amount that a single onshift engineer can carry home.
And that is around where the investment returns to you.
--
Töma