Keytar or Theremin?

[TimeWizardCosmo]

Keytar or Theremin?

So I'm thinking about buying either a keytar or a theremin.

Which should I purchase, and why?

Demonstrations:

 

[Whitelight]

Re: Keytar or Theremin?

I was gonna say keytar because the opening was awesome enough to seal it, but then I watched the theremin and I don't know if you could resist the nerdy fun of doing what that guy did!