Aspen has such a snob factor that I was surprised that people fly commercial. I'd rather see DL start service from SLC to SAF or DRO in the future once we're out of the pandemic.

From what I can see, SLC is good for going from large east coast cities to Idaho, Montana, and smaller west coast cities. That seems to be where SLC is most useful. Plus, SLC has plenty of good skiing right up the mountains from the city. Denver requires a lot more driving to get to the ski areas.