Heres my opinion, if I couldnt handle a bike anymore, and it was either a trike, spyder, or a car. It would be a spyder. If thats what it takes to get me out on the road not in a cage then I'd happily own one. Hell I'm 24 and I'd love to have one, they are just too expensive.
Its a lot of nothing compared to the ZX14/C14 T-Rex three-wheeler below
I didn't like riding the can-am due to the sheer lack of performance in every category except braking. I guess if you want to talk yourself into one thats possible.
I have a pair of them, I like them a lot, I bought them in 08 when they came out. My wife has the SE5 I ride a SM5. They are very fun to ride, we also ride Ski Doo snowmobiles. I am a very big fan of Bombardier...had a Sea Doo Islandia Jet boat also.
Best advice get out and ride one!