Thinking about it myself. No point in heating water I’m not using.
I have one and love it.....I had a water heater in the attic and constantly obsessed over it overflowing and ruining my house. I decided to get a new one and relocate it to the garage but the guy from Mobile Gas talked to me about the tankless water heater and I love it!!!! Low water bills and low gas bills. I would highly recommend it; in fact, since I got mine several of my neighbors have also gotten them.
One thing, though, the new appliances/equipment are vastly, vastly more energy efficient than previous generations.
My local power company is giving away new fridges and washing machines to people who have older models. I got a fridge, and am soon due to get a washer.
My power meter on the fridge showed it went from using about 1.7 KWH/day down to .7 KWH day, thats like a 65% reduction in power used.
I was quite impressed.