I have a 2015 Model S and s 2016 Model X is my wife’s primary car.
We have traveled all over the Northwest. They both have stated ranges in the 240-260 range. We certainly are aware of any day when we travel more than 180 miles or do. At that point, we need to pay attention. Have we ever had to change plans? Never. Have we ever had to top off during a regular driving day? Never. What a lot of prospective new owners don’t realize is that stop and go traffic, and city driving get close to ideal range.
Have we taken long trips? Yes, many. Not cross country, but who really does that? And if you do, it’s a cool adventure in a Tesla!
I live in the Pacific Northwest, which is very hilly, and has long distances to drive. Why don’t you keep track of how far you drive per day for a couple of weeks? If it is over 200 miles, then just get a Model S LR, or go get a gas burner. But I really don’t know a lot of people who drive that far, except those who live in the boonies, salespeople, hunter/campers, or people who like to drive for hours.
But as far as waiting for new technology, that won’t happen. Better batteries is great, but an aspirational technology right now. Tesla has bigger priorities, like making the Cybertruck, and gearing up for the compact hatch they will make as a world killer.