There is not rationalizing the obsession Star Wars geeks have with the movie series. The same can apply when it comes to the collector crap.
The Darth Vader Robotic Arm comes disassembled in 45 different parts. All you need to do is snap the pieces together and you’ll be one step closer to Sith status. Despite it being called a “robotic arm”, this toy is all manually orchestrated. It can be manipulated to hold “light objects”, or perhaps give a Sith Lord finger to anyone standing in its way. It will probably make a great holiday gift, even for the non-Star Wars fan.
Thinkgeek has it for $40.