My work can be stressful, with multiple projects and multiple people competing for my limited amount of brain cells. Standard ways of de-stressing, like exercise or yoga or regular hobbies, don't really work because my brain is still spinning the giant rolodex of work tasks that I need to complete.
Sims is so all-absorbing and entertaining that it's the only thing I've found that can force my work life completely out of my head for a while. The music, the beautifully rendered towns, the non-linear, explore-any-way-you-want-to form all come together to teleport me to the Land of Real Life Escapism.