would you replace plumbing on 100 yr old house?

[Pascual Torres]

working on our first BRRRR project and this could be a good time to replace plumbing. This is 100 yr old house. The supply pipes seem to be galvanized steel and drain seems to be PVC. Should we just replace the supply lines with pex? I dont think it would cost that much since pipes will be relatively easy to get to.

I'de like to hear your thoughts.

This will be a rental.