Ooo, that's a tough one. We have been haunting for 10 years now and we had to skip 2013 due to several deaths in the family just prior & emergency brain surgery on my hubby-basically skipping was a no brainer
(no pun intented). Thought we were skipping 2014 because our son was getting married Oct 25, but we bumped up the haunt/party to Oct 4th and rolled with it. We decided to go ahead with Halloween 2014 in Aug- that gave us time to start setting up for an early haunt & send out the invites. It was crazy getting both things done & a HUGE amount of work, but totally worth it in the end, for us. The attendance was lower, as about half of the normal group were coming from out of town for the wedding.. it was one or the other for most. But, because the haunt was early in the month, the weather was great! (It poured here on Halloween night and the day after) Otherwise, attendance fluctuates from year to year; we've had 100+, and we've had 35. As long as everybody is having fun, and I ALWAYS have fun setting up, we will do it. I look forward to Halloween all year; getting new ideas, building props... and there's just not enough medication to make me feel better when we skip 
Good luck!
Good luck!