I got mine WF-only non-holiday last March (had 2 days of 'free' skiing last spring) for $359. Full pass was selling for $575
usage:
January: 1 nh 2 h
February: 3 h
March: 4 nh
April: plan for 2
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total of 7 non-holiday days + 5 holidays ($45 each)
looks like an equal choice for me between Holiday and Non-Holiday pass, or no pass at all for that matter