Why are people even interested in Games?

I don't understand the fascination with game development. I find writing desktop applications much more rewarding, because they're actually used by people -- I've seen people's lives changed by a Task Manager.

Why games? Nobdody will remember your Tetris clone.

Writing a game in C#, and I'm having a grand old time at it.  While C# isn't really the best choice for a gamedev language, it's easy to use and compile, and is relatively fast and responsive.

I'm also a designer and a graphic artist, as well as an amateur composer, and apparently, according to my friends, a good storyteller in all the mediums I've used so far.  To see all the my diciplines I practise come together in a single presentation makes it for me.