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You don't know what you will be missing ;-)
(btw it's 5 days , a MEGA SH***LOAD of fun, information and surprises, good information and connections worth tenfold what you'd have to pay)

You should try to WIN a ticket+flight+hotel. Probably there are some contests out there...

I know, we booked the hotel a month ago, but we can't afford such an expensive ticket too