Another good thing about the Nikon 1 V2 is that it has the ability to swap lenses unlike the Nikon P500 with its single fixed to body lens, thus if the Nikon 1 V2 were found out to be the best HS recorder affordable (less then $3k sitting quite 'cheap' at only $800-$900) I would also buy a Macro lens and turn it into my Macro camera for photography.
But...I don't care for 'secondary' effects (just thought I should mention the whole lens thing before someone else), if there is a camera with better High Speed recording but less features, I'd choose the one with better High Speed recording... rite now though it's the Nikon 1 V2, it's the best I can find....(this surpasses the Casio Cameras High Speed recording).