It also serves the purpose of a generator, and with solar you might be able to cut your grid draw to basically zero

The fire risk is generally overstated, plus different battery tech, like sodium, are much less flammable. Weight and size are much less of an issue, so as adoption increases they’re going to get much cheaper and longer lasting as production ramps up

Not to mention it does meaningfully reduce load on the grid with increased adoption. Not everything needs to be financially min-maxed… If you’ve got the money, it’s a good thing to invest in