I actually think they're all sold out, despite him extending this. Of course he's crazy, but he's also a legend. So many current stars of today have modelled themselves on him and I would say still can't touch him! A true entertainer. I'm worried if he's in a fit state to perform so much, but there are blatantly so many that want to see him. It's a shame this is his last tour (well, here anyway) - I really wish I could have seen him.
I'm hoping it's not his last show EVER though. I hope it goes well - having looked back on old performances etc. on Youtube, it looks promising.