They do have their uses, She Who Must Be Obeyed has one, next weekend we're going to a swapmeet (Palmerston North Swapmeet, held at Feilding. Go figure.) a mate has asked me to take some rims down to give to a mate of his whom I have never met.
When we get there we can ring him and arrange to rendezvous, much easier than going around belowing "Fish! Fish!", ('cos that's what he's called,) "Where are ya!"
I reckon someone would come and take me somewhere where the walls are nice and soft and you eat your food with your fingers.
She bought one for me three or four years back.....but I've never used it....on the occasions I've wanted one I can use She's.