I was talking about this with a friend only yesterday:
Since I am going to his concerts and since I take care about pre-sales and stuff I never saw a planned show cancelled or delayed or moved into another venue - apart from the 2003 tour of course - six nights at the RAH planned, six nights sold out, big o2 Arenas booked, and always (as good as) sold out...
I remember Dire Straits in Australia and stuff, but I am talking about the last 15 years which had a lot of touring included - and Mark always did everything, every announced show, like a real trooper - no 70 minutes gigs, no deficits of any kind - just read and look at the so called younger super star, and you see how reMARKable that is...
So he has a very loyal AND big fanbase - and a very good tour management obviously...
LE