The plus side to BMW is that they have a very strong demo program. So, while the shows are nice, a demo is even better.
I've heard rumors. Rumors of alleged demo rides, offered at their mythical 'dealerships'.
A man once gave me directions to one of these 'dealerships'.
"And after many miles, you will come to the land of the Elves. The Elves will give you a task, and if you complete the task, they will give you a guide, and the guide will take you to the BMW dealer."