Same. For the average customer, a battery would probably wear out 10 times before a power button would. So if they truly cared about longevity for the customer, there are probably better things they could do like making battery replacements easier and more accessible. Unless this makes the phone extremely water proof, which would be desirable for many customers, I think it would be safe to assume solid state buttons is not so much a new feature/selling point as it is a cost saving move for Apple.“..would eliminate moving parts that can wear out or break over time.”
Lol, I never had a power or volume button wear out from the very 1st iPhone I had to the 14 Pro I have now.