[adgjlsfhk1]

2.3 million a year for something with a 20-30 year lifetime is a lot. It's not quite enough for "in 20 year everyone will have one", but you only need another 5 or 10 years of similar 15% growth to get there.

[toasty228]

> with a 20-30 year lifetime

More like 15-20, if you find a proper maintenance guy who won't scam you into buying another one because "yours is dead" even though it isn't