Meh, I'm not sure why a lot of people over analyze stuff like this. Personally, I like to go different places since no two resorts are the same. I have/had a season pass to Sno, yet still had a chance to check out Blue, Boulder, and Jack Frost last year. All mountains have pros and cons.
To answer your request for a reason to come down to Sno instead of Elk, I'll give it a shot:
No lift lines.
Tons of snow.
The bar.