I would be interested in a Skidoo big bore as long as they don't charge turbo pricing for it, like Polaris does. It would obviously be an upcharge over the 850, but if you are within $500 or so of a turbo, I'd get a turbo. I only get to go west once a year so a I can't justify buying a turbo (yet), but also I don't really want the weight of the turbo.
180-190 hp at sea level on a n/a would still offer me an increase in power at 10k feet in Wyoming and would be a riot in Michigan.
I rode a 9R last year for only about 15-20 minutes. It was our guides' sled. First time ever on a Polaris. Personally, I thought the power was about the same as my Summit 850, with a little quicker revving. The chassis was pretty nice though compared to the Gen 4. It was definitely easier for me (as an intermediate rider) to get on edge. The Gen 5 summits felt closer to the Polaris on handling.