Your customers will be able to scratch the field and answer the question during the week and participate in the competition for prizes. This provides plenty of time to create exposure for your campaign. The advantages of the Advent Game includes getting many new signups for your newsletter and gather permissions, which allows you to present targeted offers and communications to your customers.
An Advent campaign only takes a small effort to create, since you only need 4 questions and 4 prizes. It is an optimal choice, if you want to, fast and efficiently, boost your newsletter-signups.