[SunkenCiv]

I watched the local gubmint replace the last ones on Main, there was a hole where the street for the old biz section is, and several of them were hosed down, dried off, and preserved in the museum. The cross street's wood pipes were replaced about thirty or so years earlier. If it ain't broke... :^)

[TigersEye]

If it ain't broke...

Heck, those Roman water pipes look like they could still be serviceable.