Jim responded to Linda's question (in part here):
That said, there is a strong tendency to work on a quarterly
cycle, and the reason--at least for BACDS dances--is that we
have for many years published a quarterly printed calendar.
The calendars are mailed out (to those members and other
mailing list subscribers who have elected to receive paper
mailings rather than electronic publicity only), along with
other publicity flyers, near the start of the month preceding
a calendar quarter. For example our October-December 2013
calendars went out a few days ago.
(some paragraphs deleted)
Linda, I hope that answers your question.
Yes,
it does! I can see how publishing a quarterly calendar let to the
natural choice to program on the same cycle.
Except for special dances and weekends, my preference is definitely
for the quarterly scheduling. But I do understand why organizers might
have a longer view. I, like Kalia, find it challenging to predict what
might be happening a year down the line.
It will be interesting to see what others think.
Linda