Every place I've lived other than CA has had >3x cheaper electricity. If the max break-even period in CA is 20yrs, that's 60yrs in those other places, which is both longer than I practically care about (not that I'm not a fan of non-renewables for other reasons, but we're in a thread talking about costs) and also far beyond the useful life of any of the renewable tech involved, meaning I wouldn't achieve a full 60yrs of benefits in the first place, even if I let the system run for an indefinite period of time.

I know there are other places with high energy costs, but for the majority of the US (both by land area and population count) solar doesn't make economic sense without additional incentives.

And even that analysis assumes that you're forced to use electricity. Many home appliances are vastly more efficient dollar-wise when powered by various petroleum products.