There is a huge market for Lego developing, and in large markets there are price variations one can take advantage of. The marketplace for Lego has grown enormously since the introduction of Mindstorm the robotics orientated Lego. Now Lego is not only in the realm of children’s toys, but it is of interest to many adult institutions. Engineering schools, executive eduction, hobbyists, and of course hackers, are re-inventing the way Lego is used. For economists the little Lego commodity is the ideal way to study micro-markets.