As someone who has been toying with various RPG Makers for over a decade yet never finished more than 15-20 minutes' worth of playable material, the question in the title is something that I've been thinking a lot about, especially recently. I have a tendency to aim for the stars with my projects, whether it means fully custom graphics, an epic story or some kind of game mechanics which complicates the development process, and that usually leads to me running into the limit of my skills and energy - and eventually draining all my motivation.
It would probably be wise to start from something relatively simple, but... that leads to my other problem. I can't seem to muster inspiration for anything like that.
So, back to the question after that bit of introductory rambling. What do you think makes a good first RPG Maker game? Should the developer aim to finish their first project before moving onto others? Should the first project be published somewhere (to receive feedback and such), and should the first project be done by yourself or in a team? Is it better to work on something grandiose which you feel enthusiastic about or try to focus on something more simple that is more likely to be finished, even if the story doesn't inspire you as much?