You will still be able to ski all over with your afterbangs, it will just limit how much fun you can have outside the park. If you get a pow day while you are there, then i would suggest to demo some pow skis for that day. But you should be fine for all mountain stuff. It just wont be as fun when you leave the groomed runs.
As far as discounted lift tickets: Check liftopia.com. The only other discounts I know of is ski with a friend. So if you know someone who has a season pass, they can get you a small discount