First, I doubt seriously that Flagstaff averages more sound per year then Buffalo. If you have something that proves it, please post it.
Second, how can you legitimately compare snow levels of mountains that sit at 12k or higher in some cases to areas that sit only a few K above sea level? But lets talk about it, after doing some quick searching on the web, I have not found one city, including Denver that has reported that much snow over a winter.
Lets continue to talk about High cities, if they get that kind of snow that you claim they do, why is it that they have to completely shut down, like Denver has had to do this year? They only had a few feet, over generally the same amount of time as what has hit NY, yet, NY hasn't shut down like Denver has.
Want to know why? Becuase NY is used to getting snow like that ALL the time and is ALWAYS prepared for it. Areas like you mention DO NOT get snow like that and when they do get hit with a bad storm it is ALWAYS a problem.