The definition of a great LEGO convention is all the above, with a lot less sleep.
Brickworld 2011 has come and gone, and Brian Davis wasn't able to blog from the event, because to be honest he said, there was just too many other interesting things going on. There was a huge model of The Love Boat (with hidden scenes from other movies... like Jaws, Snakes on a Plane, and The Poseidon Adventure), Shep's amazing Flex-Picker, many other amazing constructions large and small... and, of course, robots.
They had Monster Chess there again, as well as a preview of a future project, a LEGO robot based version of RoboRally(even bigger than Monster Chess). The NXT-based Space Shuttle was there, robots like PackBot (kids played with it all day long), a huge number of sumo robots (around 70+... they had a multi-hour teach-in for people new to it), a bunch of entries for a "Build-On-The-Spot" (B.O.T.S.) challenge, and boat races again. I've got a bunch of pictures Brian need to get up, but so far Brian's only put together one video, a collection of clips of the LEGO boat race (including underwater)