I expect they are just too expensive for most people at over a quid a time when a tube of paste is cheaper to make at 40p. It won't be long before we are back to those little hard tablets we used to scrub the brush on to get a lather. I also expect the residue left inside and the mixed plastics makes them unsuitable for recycling. I cannot put tooth paste in my mouth without gagging, so I use powder which is also very hard to find. If we do come across it we stock up for the year.
