Korean company Grandport is showing off their really neat Skyschool i-robo robot course kits. There are Beginner, Junior, Senior, and Expert courses, with a few levels within each. Each level has twelve weeks' worth of 90 minute exercises using the kit of parts and a textbook. The courses start with basic mechanism assembly and circuit board use and a proprietary GUI-based programming, and later incorporate Microsoft Robotics Studio integration, sensors, and navigation. The kits can include ultrasonic or IR sensors, Bluetooth modules, and several different types of motors.
Here's a picture of one of the models they had on display. Most of the kits are good for 10-11 different types of models.