This is an old revision of the document!
What kind of fun is there in being a game master? Some see it as a work, but you need to find what you think is rewarding, and have a group that enjoys giving that feeling.
When prepping, you find yourself thinking of how it will end, and paint pictures, perhaps giggle while doing all the prep work needed. Science has shown that even if it doesn't happen, you can still it because of the anticipation of what could happen.
Designing a fun challenge in, for example, D&D is rewarding in itself. To find out different combinations of powers between monsters, or trying different environment, and then having the players face them.
It's true that you cannot reach immersion because it takes deep commitment over a period of time, but on the other hand you get to play so many different characters that you perhaps wouldn't had time to try otherwise.
When that spark lits in the players eyes, and they can't stop themselves to gasp, chatter or act, that energy is fed back to you.
When everything clicks between you and your players, and you all immerse in the story, you're feeling the adventure is playing itself, or you cannot stop contributing to each other's ideas. When time and place seems to disappear, then you're in the flow.
Some people love to create worlds, and love reading about those worlds in roleplaying books.
All the cool stuff you're reading about, in this game or others, if it's themes, cool characters, styles, genres - all that is yours to include in the scenario.
You choose the theme. You choose the conflicts. You choose the message. You choose what the story is about.
I swear to you, that there is a guy that is touring around on conventions to talk to others about his character. Just in the same matter, some game masters love to talk about what they created on their sessions.
Just like a fishing trip, or a vacation, taking a imaginative tour with others is something that creates bonds within the group.
Everything you learn about game mastery, is something that you can share with others. Whatever response you get back, may it be on blogs (ex. www.gnomestew.com), forums (ex. www.rollspel.nu), or people buying your book (ex. Play Unsafe), it's enough to get you going in the role of a game master.
Tinkering with houserules or tweaking certain mechanics is a joy in itself.