A welcome change as there’s no reason to charge different prices for the same product in the same state, same county and sometimes even the same town.
There is, and that reason is that you want to charge the maximum amount that the customer will pay. And different customers have different maximums.
Airlines are the kings of a low-margin industry being incredibly aggressive about optimizing pricing, and the exact same ticket will cost you wildly different amounts through different sales channels, on different days, etc.
For another example, I'm thinking about buying a laptop this month. Companies like Lenovo completely turn me off with their $4,500 prices minus $2,450 in "eCoupons". Another pain point is manufacturers that give different prices for the identical laptop configuration, simply because I started the customization wizard with different base models. I have no respect for these companies as they waste my time. I like the Apple pricing approach. I can feel confident making a purchase at any moment, because I know their prices don't fluctuate weekly, and they're not going to have a 30% off coupon code a month after launch that makes me feel like a fool.
Tesla has a few major advantages. First, they aren't tied to a dealership network. Second, since they sell online, they can dynamically change pricing with demand, something Saturn and Scion couldn't really figure out.