It's a snowmobile for the street...if you own one you're 90% a cager in my opinion. If it doesn't lean, its got no place with us motorcycles.
Edit: I guess I should be more specific as to why I feel this way. There are some cases in which I can see where a CanAm *might* make sense, most notably if you have some type of medical issue with a leg which makes holding a normal motorcycle difficult. I can also theoretically see why the Can Am could be more comfy for super long distance highway cruising. That said, I feel that it gives up far too much in terms of what makes a motorcycle enjoyable. The steering is abysmal in its feel and feedback, and is far too awkward to use safely in an emergency. The lack of lean on the chassis makes centrifugal force in turns an enemy rather than an ally. The Bike is too heavy to be a reasonably manuverable motorcycle, but is too light to be as substantial as even the lightest of cars. All of these things in the end leave you disconnected from the whole experience, and being that the whole point of motorcycling is to become one with your machine in order to have a fuller experience, it does exactly the wrong thing. It's also far too expensive for what you get; its not hard to find a bike superior in all regards for half of the price of one of these.
All that said, if it floats your boat, get one!