We have retreat in person sign up at guild meeting. The members in attendance get the first chance to sign up. A small deposit is made at time of sign up to secure the spot. Anyone who fills out a form but does not pay the deposit goes on the waiting list until deposit is paid. A little note in the newsletter will say registration for retreat will be available at meeting. A deposit will be needed to secure your spot. The non active retreat members rarely make it to a meeting to sign up. Most said oh I didn't read the newsletter.
We learned not take pre registration Or the put my name on the list for the next one.