If you would love to see the aurora borealis, but are not a fan of spending 4 hours on a mountaintop in the middle of the night in sub-zero weather (I'm looking at you Joan...), you might be interested in another option.
The Chena Hot Springs Resort where I stayed is home to a natural outdoor hot spring, which can be your vantage point for an "aurora lite" experience. (Pun intended...) The view won't be quite the same as from a mountaintop; it will be dimmed by interference from resort lights, and depending on the location in the sky, trees may also partially obstruct the view. And you won't be able to take pictures; the steam rising from the springs will fog up your camera within seconds. But if the lights are intense enough that night, you'll get the gist of it.
The only discomfort you'll experience is that excruciating 30-second swimsuit walk from the pool house into the 106 degree water.
From there on, it's aaaaaaaahhhhhh.