I think it's interesting to see the different gums in one place, but I can't see pursuing this as a collection. As he says, it's the "final frontier" of collecting.
I was surprised when I opened an Irish Pack a couple of years ago that the gum appeared pristine. It was interesting to me because it was much more white than our (USA) "pink" gum. Wondered if UK gum was more white in general? I did keep this gum and put it in it's own little plastic container, so I guess I am a gum collector in some ways - lol!