Quite cross about this.
Different of course if someone has a heart attack/car accident, but to turn up specifically to access expensive maternity/cancer etc treatment is not only unacceptable but unsustainable.
Particularly annoyed because the pil's dementia care which they had to self-fund ran into many hundreds of thousands (at a humdrum establishment, too).
It sticks in one's craw to be told constantly that the NHS is crumbling but that an extra couple of billion per year is ok for health tourists.