I use to update every year, I stopped on the 12Pro, changed to a 2-year cycle.
But I'm really hesitating about this year, maybe I go to 3-year cycle
as tech matures there is less and less breathtaking new stuff.
Three year cycles tend to provide enough new stuff to justify the spend for most people now.
And batteries arent dying after two years like they used to seem to.
Jobs visited the Sony factory and was apparently impressed by their update model system.
Sony would add just enough new features to make something better. and a year later do it again. and again.
With only one year between updates, it's hard to find something great each time let alone a few of them.
Office used to have the same issue. Each new version had more features but the biggest competitor it had was the previous version. Subscription probably works better for them. More reliable income.
A few months back I loaned an old Macbook Air to a friend who wrote books.
He did the originals in Word but I didnt have a licence for it on that machine.
So imported it into Pages. I was surprised how well it just worked.
He's not a tech head (far from it) so the reduced options has been helpful to get him back writing again.
Sometimes it is tempting to add new features that seem good on paper but not much use in real life.