[koyote]

A $500 watch will certainly still have much use 10+ years from purchase.

It might have minor scratches but that's it.

A smart watch will probably not even power on 5 years from purchase (due to bad battery); or be able to pair with your phone (new phone OS might not be backwards compatible).

[eloisant]

Actually any watch over a few hundred will have a sapphire glass, so even after 10 years it's unlikely it has scratches.

The body may have some minor scratches, but I think it only adds to the charm.

[masklinn]

> It might have minor scratches but that's it.

And chances are that's just the glass face, which takes minutes (and a few bucks) to replace.