Can I please pay a bit more to never have to use it again?

And will continue to. AI won't reduce those costs by a penny.

As far as I can tell, it won't even accelerate a competitor who could bite off a piece of that. As far as I can tell, it won't even make the suite itself better, just buggier. Maybe MS themselves could fire %15 to %30 of the people who work on Office, but these companies have been vastly overhiring for years; they could have done that 10 years ago and they didn't.