Here's a pull quote from Target:
Target spokesman Lee Henderson: “Board games (are) a double-digit growth category for Target and, we’re working closely with the biggest game-makers, specialty companies and newest start-ups to lead the industry".
I never get explanations of such decisions based on the rate of growth, that don't also include the size. And if there is a substantial size mentioned, then the growth isn't really important if it's not negative.
The easiest way to get a very large growth is to start with something extremely small. The smaller the category the larger the growth for the same minor change. (When you only have a single customer interested in boargames, then when they bring a friend there is been an amazing triple-digit growth!).