Best selling mirrorless cameras in Japan for 2012

Out of the six mirrorless  players I would expect Olympus to be making the mk most profits...why?

Olympus marketing is cost effective, they already largely paid for their initial development costs, their prices have been more stable, I get the impression they give a smaller margin and less credit to retailers, they sell more lenses and accessories to their consumers,their consumers also generate more word of mouth...

living life to the Four Thirds!
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