There are few things on which all digital marketers would agree on, but using remarketing lists is one of them. Rarely does a user, when first encountering a product by a brand unfamiliar to them, end up purchasing the product/service. And the higher the price of the item, the lower the probability.
Usually, before the purchase is made, the user needs to get familiar with the brand, explore the website, maybe read a couple of reviews, visit competing products, and so on. This happens via multiple touch-points throughout a certain period.
Remarketing lists offer brands the option of re-engaging with their audience, improving the overall performance of the account.