I think
it’s because NaNo is over after the thirty days. A large number of people finish
out their time at NaNo and never look back, never move forward. Those of us
serious about writing know that manuscript not only has to be drafted (which is
never done in 50,000 words), but then revised, proofed, revised again, etc.
It’s a much
bigger commitment than 30 days, and those of us who spend time writing all year
long don’t’ have time for the games and artifice of NaNo’s structure.
I remember
reading on NaNo forums people who spent months in preparation, creating
profiles of their characters, of detailing their settings and plot points, all
so that they could begin writing on the stroke of midnight, and all I can think
of now is that instead of doing nothing but preparing to write, you should
write.