To cover our costs such as venue, food, drink, video, presenter, as well as my time as organiser. As I mentioned on the event page I am setting up the event as a non-profit organisation. Any money left over from the event will ploughed back into the production of future events. It has been a tough decision to make however it will make the event sustainable for the long term. I mailed out the proposal over a week ago and received huge support in favour of the changes.
Feel free to let me know your thoughts. My email is d.grabov@gmail.com, in case you wish to contact me directly.