Same things as with electric cars, 10 years ago Tesla started as a luxury car manufacturer and now it moves to wider and wider auditory. And there's plenty of 2

Same things as with electric cars, 10 years ago Tesla started as a luxury car manufacturer and now it moves to wider and wider auditory. And there's plenty of 25k roofs for them to be busy for years... Also, I think math for new houses should include the fact that property is usually mortgaged. So, you take part of the cost that's over 25k and it's mortgaged for 25-30 years. You don't pay $30k at once, you pay $100 a month for it, and it saves you $150 in electricity. So it works right from the start. Now there's plenty of roof space for the beginning and let's see where tech will be in 10 years.