Sure, I love puppies and sunny days and walks on the beach, but my real love is online gaming. Why, you might ask?
Because it's fun.
As far as I'm concerned, that's all that needs to be said, but if you really need an explanation.....
Games are engaging, arguably as engaging as a good book, and definitely as engaging as a Movie or TV program. A game can offer all the depth and complexity of a novel with all the artistic flair of a movie.