9to5mac:

Apple will introduce several major initiatives to ready its retail stores for the Apple Watch’s launch in April, according to sources briefed on the upcoming changes. Starting on April 10th, Apple will allocate 15 minutes per customer for in-store try-on appointments, using 10 or more try-on stations to manage what’s expected to be a steady flow of customers interested in having hands-on time with the Watch. While customers will not necessarily be required to have an appointment, they will be time-limited and guided during the hands-on experience. Additionally, they will be given the opportunity to place a reservation at the time of try-on for a particular model, and make a follow-up appointment to pick the watch up during the April 24th launch date. Stores will also have launch day stock for walk-in appointments.

Apple is one of the few companies in the world with this sort of experience managing customer demand.