They are getting cheaper and becoming much more common.weak comparison. doubt the future is everyone have lazy taps, then again with the average size in this country...
Yes there are times when boiling a kettle may be quicker.. Ie at xmas when we have 25+ for dinner. But in the main its another must have piece of kitchen equipment. It's connected to a smart switch, So at midnight it goes off and comes back on at 8am. Same with the recently added cooler too.