Microtechnic is a subtheme of Technic that was introduced in 1998 and currently consists of 6 sets. As of today, the average annual growth of all the sets in Technic Microtechnic is around 3.1% per year. The current value of all sets in new/factory sealed condtion is $102.79.
TECHNIC is one of LEGO's longest running themes based on creating detailed model machines and mechanical items with specialized beams, axles, gears and connectors and primarily designed 9+.