At a Thursday midnight showing, I sat in a theater filled with nerds waiting for the start of Tron Legacy in 3D. Why were we all there? Light cycles, of course.
I only joke that the theater was filled with nerds (after all I was there too). In my opinion Tron Legacy delivered everything fans wanted in regards to visual effects and an epic light cycle battle. There was even a vintage light cycle worked into the film which was quoted as being "the fastest thing on the grid."
Photo of life size model of light cycle at Disney's California Adventure