That definitely could be it. It also could be that the cost of doing business is just higher in CA (though I would also expect it to be higher than average here in MD.) It surprised me when I was first looking at Tesla to learn that the price was the same everywhere since I would expect some costs, like for labor, to have significant variance. In the end it made Tesla (and particularly the solar roof) relatively cheaper since other solar installers and roofers do charge more in this area than the national average.Maybe they are starting to do some demand based pricing. I don't see increases on the solar roof here in PA.