Even my independent mountain, Bristol has upped the window rate significantly as compared to the season pass or even 12 pack of pre-purchased passes.
In 2015/16 a season pass was $725 with a break even to buying individual day passes was about 12 days. Now the season pass is $835 with a break even of about 9.3 days over window rates.
In 15/16 a 12 pack of pre-purchased day passes was $510 or $43/pass. Window day rate was around 60. Today the window rate is $90 (unless you buy at least a week in advance for $85)compared to the 12 pack of pre-purchased of 665 or $55/day.
Clearly they have embraced pre-purchase pass bundles. They haven't debundled parking or lodge access yet...