@Mark-S no easy answer to this. Any repair or damage devalues a pot.
If the repair is done well, a repair of any kind recovers some of that value.
If you do a gold repair on a 90s pot, it might actually increase the pots value : )
It all depends on the individual piece and repair. I’d say solid repairs like fittings, rims and caps in precious metals are possibly better value as they will be more future proof. Kintsugi might need refreshments at some point it’s not forever - but then, nothing is.
Invisible repairs exist as well, but can not be done for all kinds of damages. Controversial maybe as the seller might not tell it’s been done and only someone who knows will see where it’s been. Don’t think anyone in the West is capable of doing this method though it’s highly specialised. I think for museums they do a cosmetic version of it that only looks whole but would not stand usage. Not sure though.