Re: I can't see the point.
Your argument hinges on an extraordinary, once-per-year journey. If you're happy to pay the additional price of all the fuel you'll use across the entire year for the sake of doing that one journey a few hours faster than you *think* it could be done in an EV, then I suggest your sense of perspective is a tad skewed.
I have done many journeys of well over 500 miles in a single day in the Model S and arrived in a much more relaxed state than I ever would have done in previous ICE cars, including high end Audi and Mercedes. Yes it helps if you have a partner to drive shifts, but don't forget the Tesla's autopilot feature which is a huge stress-reliever. Also the enforced charging breaks really do make you return to the wheel more refreshed, relaxed and alert than you'll be after a 10 minute fume-filled wallet-bashing session at the pumps. And you are seriously underestimating the range of the Tesla -- on long highway journeys I can easily do 240 miles, maybe more on a charge. So 1500 miles in three days? Piece of proverbial. And you'll have spent a small fortune on fuel, while my recharges will have been totally free.
It's obviously an expensive car, but there's a good reason why it's the best selling car in its segment. If you look at the likely total lifetime costs, it stacks up far better than equivalently priced oil-burners. I'd bet you'll be driving electric within ten years. You'd probably be doing it now if you had the wherewithal.