I'm old school myself, and still use a top load washer. When it's time to replace it, that's what I'm sure I'll buy again. Probably something no newer than late '90s/early 2000s. That's just me. I'll be the first to admit that I don't like change.
That being said, I agree that if a company can build a product that uses less water/energy, and still gets the job done as well as or better than the old tech, that's great.
We've gotten burned twice on boilers for our house. Remember how long the older, inefficient ones used to last?
We've been in our house for about thirteen years, and we've had to buy two systems so far. Both times, we were promised that it would save us on our utility bills.
Well, on a bitter cold New England winter day or night, the first one never could heat our house effectively.
About eleven years later, when it would have needed thousands of dollars worth of repairs, we got talked into installing a tankless combination system that does our heat and hot water.
I'll admit, it did an admirable job of heating the house all winter. But...for hot water, I hate it.
All they kept pushing before the sale was that, with tankless, "you'll never run out of hot water!"
What they didn't tell us, was that you can't set it to a comfortable temperature for a shower or to hand wash dishes, and have it maintain that temperature. It fluctuates all over the place.
And, after having techs to the house multiple times, including the head honcho, we've been assured that the system is working as designed.
In other words, we're stuck with it.
Energy efficiency PLUS doing the job? Terrific!
Sorry for the long rant.