What is your Motivation for Creating Your TTRPG?

Obviously my primary motivation is to become filthy rich, all that sweet, sweet indie TTRPG money, stacks on stacks on stacks. And obviously, like nearly everyone else here, if the exact game I wanted to run/ play existed already I wouldn't need to create my own.

After that though, what are the motivations for making my specific game? It's fun of course, some of the most fun I've ever had...so far, I haven't reached the *work* part yet of layout.

My biggest motivation though is to create a game that I would be excited both to run or play in. What excites me about a game? Tons of character options with strong built in flavor. I love classes for the same reason many of us love great published campaign settings, something about them grabs you setting fire to your imagination. Modular, customizable classes though is my passion. My current design involves a kind of short playbook (playsheet?) design where the player combines multiple playbooks together over time.

How about you, what excites you to design? What drives you to see your game finished?