Hey all. I got in on that Southwest deal a couple months ago, and made some changes to my itinerary to make it a 4 weekday long SLC trip. Spending the first half up in Ogden to go to Snow Basin and Powder Mtn, and the second half commuting from the city to Park City.
Um... I had no clue, but apparently the Sundance film festival is gonna be going on the entire time I'm there... is this gonna make the slopes significantly more crowded on weekdays?
I ran into a similar "problem" last year. While I did not ride PC (though travel buddies did and they said it was so-so), I found few problems with SnowBasin and Powder Mtn. Both are too out of the way (30-45 mins away) for the Sundance crowd that is doing more posing than riding. Being that you'll be there Mid-week, the crowd will be less than the weekend push.
I'm actually heading back there the weekend before Sundance starts. I don't think I'll return to Powder and Snowbasin was appealing. I will, however, check-out the Canyons. I've heard that the Canyons Resort is much more enjoyable than Park City. I'm also going to take the drive to Snowbird, and I suggest you consider a day there, too.
Also, you can get better priced tickets by grabbing lift tickets at local ski shops. I think I saved 15-20 bucks by getting a snowbasin ticket at a little strip-mall shop in Eden (the town below Powder).
So, thats a ton of here and there info. Enjoy! Oh, and be sure to check-out Park City Town (after riding, obviously) during one of the peak Sundance days its an entertaining show.