Agreed there are still some areas that are less well served, but you might struggle to get to somewhere that was not within 10 miles or so from some form of EV Charge point (using Wales, or the Western Highlands is cheating). And it's getting better all the time.
I am often asked for the downsides of owning a Tesla. The purchase price is always there; it was nearly twice what I had ever paid for a new car, and did require quite a large intake of breath.
Potentially repairs is another. But I hope to avoid too many of them.
There are some compelling arguments that can be made for buying an EV. But not for a Tesla. Buying a Tesla is a separate decision completely. It's a bit like deciding to buy a Porsche or a Ferrari or a Rolls Royce; there are cheaper options available. People buy it because it is the best. But if someone is considering spending that sort of money (on a top end 7 Series, or a top end E Class, or S Class,) then frankly, it's an easy pitch to make; the running costs, the performance, the environmental aspects, are all difficult counter.
Apologies for the three posts. My technical expertise just ain't up to it.