RBW 2011 cancelled; boat party remains
[...] for the last three years we've been left worrying right up until the last month or two whether we'll have enough attendees to cover the cost of the event. We'd hoped that the successes of previous years would fix that problem, but the number of attendees hasn't changed significantly.
Organizers still intend to run the popular boat party on the Thames, and perhaps other events.
RBW – initially known as Red, Blue & White, later retitled Rather Brilliant Weekend – got off to a strong start; 242 attended in 2007, 290 the following year. But various problems in 2008 led attendance to drop 22% in 2009, and while last year's event was well-received, attendance fell further.
Past attendees are posting their memories in the UKFur forums.