It seems to me that an acoustic piano is something that (with suitable care and maintenance) should last for generations. If anything breaks, it can be repaired.
With electronic pianos, I can anticipate situations where some component goes out of production and a broken piano can't be repaired.
Specifically I am asking about the kind of electronic piano that aims to be a substitute for an acoustic piano, and is built like a piece of furniture.
- How long do manufacturers typically support electronic pianos (by producing spare parts etc.)
- How long beyond that period could one realistically expect to keep using an electronic piano?
- How much of the mechanical workings could be expected to be repairable in a hypothetical future where the manufacturer is not making parts?
(The inspiration for this is that I'm wondering whether a piano is a suitable wedding present -- something one would be reluctant to part with or upgrade).