Keep your socks on people, this is a ONE OFF and it's nothing like Hush Parties. No one is forcing anyone of you to come, so why are you up in arms about it? It's a small get together and spaces are already limited. This is a choice not a compulsory activity! If we wanted to charge £10000 for half an hour, it's our prerogative!
And love the way some people can't give objective opinions and need to stoop to such crude statements...Fascinating.