I think that as I grew up, my favorite medium of Pokemon kept changing. When I first got into the franchise, it was because of the anime. I didn't even realize that the games were a thing, but I would never miss an episode of Pokemon when it was on. Then, when the TCG came out, I got hooked on that, even more so than the show.
Those two remained my favorite two mediums of Pokemon for almost 3 years, until I finally got a hold of Pokemon Yellow. From that point on I was hooked, and the games (the main series ones, at least), have remained my favorite part of the franchise.