Foldables are emerging tech right now anyway, they're probably going to see way bigger improvements in other functionalities over the next 5 years than the iPhone has in the last 5 years. I think if you're buying a foldable at this stage you're probably not attached to keeping it more than 2-3 years in the first place. In the future I'm guessing their durability will also be much better.
I was thinking that too. I have my issues with Apple, but they usually find a pretty good trade off between trailblazing something new, and waiting until the available technology will let them build something to their standards of usability and durability.
Neat devices but not really pragmatic.