As of late 2024, Disney World transitioned from "Genie+" to the Lightning Lane Multi Pass system, and yes, it can sell out. While it doesn't "run out" in a physical sense, Disney limits the number of passes sold each day to manage crowd flow and ensure that those who purchase the service actually get to experience a reasonable number of attractions. On peak days like Christmas, New Year's, or spring break, the service can sell out quite early in the morning. In 2026, Disney Resort guests have the advantage of being able to purchase and make their first three selections 7 days in advance, while all other guests can only do so 3 days in advance. This means that for the most popular dates, the "capacity" for these passes may be nearly reached before off-site guests even get a chance to buy them.