I've only seen one house ever have one (my in-laws). The thing is a piece of junk. Very loud, very hard to load/unload, useless for kitchen trash (where most are located), etc. For example: put one piece of food trash in there and within a few days you have a horribly smelly house. Regular trash bags fill up too fast to smell in the typical kitchen.
Plus in many areas there is no reason to use them. Like said above, my trash takes anything and everything for one low price. Why make it hard on myself and why spend money on it?