A huge round of applause for making this courageous decision!

Having been behind a couple of WordCamps as well as other WP events, I know what it takes to pull off an awesome event. A great team is crucial, planning, equally so, and doing it around one's own business and life/family commitments it isn't for the faint of heart. Sure, disappointing that it's not going ahead, but better all round for WordCamps, in general, and specifically for WordCamp Detroit! Good luck for next year!