Sorry - I shouldn't have included inset days in my figures. I do know that these days contribute to a teacher's Learning & Development, which is important for all professions. They are not holidays.
You're right on the issue of holidays. My next door neighbour teaches primary school children at a private school in mid-Sussex for a very reasonable salary. I've no doubt that he works hard (he claims he does and is always moaning about the long hours) but the holidays that he enjoys each year...