Pros:
- It's a better idea.
- I'd be much more excited about writing it.
- The first two chapters of the current story are so boring I'm having trouble getting through them.
Cons:
- This story is complicated enough that I need to outline it before I start.
- It also requires quite a bit of research, so I probably can't start writing for another few days.
Sigh. What to do, what to do!