Now, I've always enjoyed going to Sexpo in Brisbane, though to be honest I usually spend more of my time perving on the other patrons than I spend looking at the exhibits. However, that said, I'd like to go to the Sexpo here in Melbourne for comparison, so the question is, who else wants to go? Sexpo is a hell of a lot more fun with a group of (open minded) friends.
The ever lovely umbra_mentis has suggested a Friday night visit (they are open until Midnight Friday night), so that's an option. If I don't go Friday night, the other option is Sunday afternoon.