I have two but can't go.
I'm selling them on ebay http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=290325147716

I'm already going but would highly recommend it for people who aren't

i wish i could, but i have to be somewhere else that night, so they're available!

You could perhaps try asking the theatre if you could exchange them for another 1 of the other nights if you don't manage to sell them?