In order of importance to me -

1. “Environment” - really me just being anti-oil company and anti-OPEC, but slowing down climate change (because let’s be real here, we’re not stopping it) is nice too. Also nice to have better air because all those other filthy tailpipe fumes are done away with, nit just the CO2
2. Cheaper fuel - I have free L2 at work, if they’re gonna force us back into the office, I’m gonna milk that for all it’s worth. Also I like the “cost certainty” of knowing what electricity is going to cost per kWh at all times, when the power company raises rates they have to get permission from the state, no more nerve wracking OPEC roller coaster ride (see above). Also love knowing the cars will be ready if/when I ever install panels on this house (roof here is 18 years old so that has to come first though)
3. Fast, fun cars with cool tech that also look nice. My MME is in Grabber Blue and my kids are borderline obsessed with it.