Hospitality IT in Japan here, we still heavily use fax. When we were opening the property they wanted me to get the fax lines setup as a higher priority than even getting the guest networks online.

We honestly don't want to use them at our property, but the issue is that many suppliers require orders be faxed. We buy almost 100% local and most of the vendors are older family owned businesses that won't take orders any other way, and so that means all other businesses basically are required to support fax as well.