That being about how much more you'll spend on an EeeeeeeeeVeeeee vs. an otherwise similar non-EeeeeeeVeeeee.

It is also an attack upon them that strikes even closer to home.

Literally.

For many – for more than a million of them – it is an attack on their homes. Because their homes are on wheels. That is to say campers and RVs. For a lot of people, living in an RV or camper is a way to avoid having to pay the rent they cannot afford – or the mortgage that is beyond their means. Or which they'd simply rather not pay, so as to save (and so, have) money for other things.

Many "van life" people also like the idea of not being tied to a particular place. If you don't like where you're living – or what it's becoming – it is a simple matter to pack up and drive away from there and head someplace else. Much easier than selling a house or finding a new apartment. Plus the moving of all your stuff.

If you live in an RV or camper, your stuff comes with you as a matter of course.

Many people live in RVs and campers precisely because they desire that kind of freedom – of movement and otherwise. It's a particular perk for young people, the self-employed and retirees, who aren't tied down to a particular place for reasons of work. But it is also a way for workers who cannot afford to live where they work – or don't want to live anywhere near where they work – to be able to work there – and live here.