I don't know about you, but I just found out that it's possible to 3D print multiple materials at once. In the words of Will Smith, "I gotta get me one of these!!!" Objet's Connex500 can print up to 14 different materials during a single print job. Now, I'm not really sure when you would need to print with 14 different materials at once—but, hey, I like options.
Not only does the Connex500 print Halo action figures, but it can print translucent and opaque materials in the same object.
Just look at that tray of multi-material print jobs and tell me that's not worth the price of a car (note: no actual price is listed for the Connex500 on the web). It even prints in rubber, for all your Hot Wheels needs.