1st of all ,hi to all you orgers out there!

Was down the street today and saw a poster for this James Cameron in a newsagent.Now,I'm not interested in a debate on whether or not what mediums do is real,but I thought £10 admission was a bit steep.So I googled James Cameron and found he'd recently worked at Culloden Academy along with Karen Collesso for charity and the admission had only been £5!!!!!! This guy is from Arbroath but surely he can't be so expensive just 'cos he's travelling all the way up here?
Furthermore the event in Inverness was for charity with all takings (apart from travel and hall hire expenses) going to various charities.
I'm thinking that if 50 people attend then thats £500.Surely his expenses can't amount to that??
And is any of the money going to charity??