Except in 1972 that would fill a room.

Same also applies in Australia. We have the same issue, our government rolled out a national internet service. The wireless service exists, but is oversubscribed and slow. Starnet is already starting to be of concern.

Some do not all have 5G LTE. There are applications in private security and government in developing countries that don't even have functioning mobile networks yet (PNG springs to mind). But they do need network connected surveilance cameras across sites. Starlink is a good application of this.

Don't forget developing countries. Some parts of the world don't even have viable mobile networks as yet. This will be a great alternative for them to waiting a few years for some sort of fibre/copper network connection for high bandwidth usage needs.

Not sure, but I'd imagine it would work near land as well (within a few kms), depends on beam width. Which would suit most people of smaller yachts most of the time, not great for the middle of the ocean though, but I believe there are other services for that.