I personally think travelers cheques can be a responsible back-up if only for those "just in case" moments. Of course that entails many variables such as exchange rates, where they're used, etc., convenience of conversion (both before and after shopping prior to reboarding) and should probably be converted in a few instances at legitimate banks, etc., immediately upon arriving ashore.
They can provide a modicum of flexibitility relative to Henry's historical problems but I certainly wouldn't cash hundreds of dollars of them because then you're inviting just outright theft.
If one finds something to purchase wherein for whatever reason a credit card can't be used, one could usually find a financial institution that would offer official exchange rates. Of course in St. Thomas it's rather a moot point.
As for the rotary dial phone and typewriter, well uhhhh.............. whatever floats your boat.
NCL Epic 2012, Eastern Caribbean
Explorer of the Seas 2009, Eastern Caribbean
Explorer of the Seas 2007, Eastern Caribbean
Explorer of the Seas 2006, Eastern Caribbean