There are many different ways to obtain promo codes for the "Epic Pass" ski season passes sold by Vail Resorts. These include, but are not limited to, winning a contest, booking $10,000 worth of private ski lessons and booking $20,000 to $30,000 worth of luxury slopeside lodging.
Epic Pass ski season passes are heavily discounted passes that are sold by Vail Resorts at or before the start of the season. The passes typically sell for upwards of $2,300 during the ski season but can cost less than $1,000 before the start of the season. While 2014/2015 Epic season passes are no longer on sale, according to Vail Resorts' website, they only cost $729 before May 26th, 2014.
The promo code box is mainly intended for employees and VIP's, and the promo codes are generally not available to the public. However, Vail Resorts holds contests during the ski season, and winners are awarded with a promo code. In addition, some ski schools are willing to sell you a heavily discounted pass if you book enough private lessons, and some hotels are willing to do the same if you book an extended stay. Finally, those who work for Vail Resorts or elsewhere in the ski industry are able to obtain promo codes for their employers.