Pros:
That banking friend who loves fancy pens and already has a dozen of them -- he will like this new toy.
Cons:
Probably won't be appreciated by most people, unless they are pen connoisseurs.
If I used this at the office at work, I would be afraid that someone would take it by accident or on purpose ... a lot of people borrow your pen and then walk away with it.
RE: MAGNO INK - Magnetically Powered Pen