I bought my ticket for March 13. I'm glad I decided to get it yesterday, it was already flashing "selling fast" on the ticket machine, which means it was already over 90% sold out with 8 days to go.
It'll be front loaded as hell, and with a limited number of theaters and showtimes it's potential is still pretty limited, but it's boxoffice run should still be interesting to watch. The kickstarter not only financed it, but gave it a hell of a lot of free publicity thanks to both reaching its original goal in record time as well as raising a record amount from the program which will probably boost the numbers a bit.