>I've found learning and creating to be more fulfilling activities than videogames.
>I wonder if other people share the same joy of learning that I feel
Yes, but... Most of my learning and creating has been inspired by games. I started with AD&D (pen and paper, not a video game), then historic tabletop miniature games. By middle school, I was reading 1000+ page college-level books about history because the games got me interested. School taught little or nothing about ancient civilizations, the napoleonic era, or the pike-and-shot era. There were also the WWII, Cold-War, and near-future games that led me to learn a lot about geography, geopolitics, and recent history.
By the time I got a PC (still before high school), I was playing some really complex detail-oriented games. There was a lot of paperwork to keep track of game state, tables to do lookups on, and rules details to remember. I learned how to program trying to make things that would ease the paperwork burden and let me focus on the strategy. (Coincidentally, that turned out to be a valuable career skill.) I also tried to make my own PC games, of course. As PCs got more powerful, PC games got better and more detailed (and better than I could make) and I mostly switched to them. Playing simulators like Silent Hunter and 688(I) led me to learn a lot about geometry and such. At the same time I started trying to make PBeM and PBW client software (again, useful career skills involving networking, client/server programming, and data processing/presentation).
As a fan of serious strategy games, I was interested in creating an AI player that could actually handle those types of games (which are exponentially more complex than chess-like games). I read a lot about AI and played around with different types of heuristics and other ideas. Nothing really came of that (yet) but it was very interesting learning about learning and thinking and planning.
Another genre that interested me were economic games like Wall $treet Raider and Capitalism Plus. That led me to many interesting books and movies to try to understand why companies did things like mergers, acquisitions and divestitures, spinoff subsidiaries, holding companies, etc., and how that related to the stock market.
Much enjoyable time was spent drawing illustrations and doing digital art, and learning a bit about 3-D modeling and CAD. That too was largely gaming-inspired, or trying to make art for games. While my skills have atrophied, I'd probably never have gotten as good as I did if I hadn't had inspiration.
Generally, my bookshelves are lined with books about topics that gaming got me interested in. My career is built upon foundations of things that I learned because of games. But I can't think of a single time when watching a new episode of _insert favorite TV show here_, or any other leisure/hobby, has led me to the bookstore to learn more, or led me to experiment with new creations, the way that a new game is likely to do. I'm happy with what I've gained from it.