the guild I belong to has a day meeting that draws about 65-70 and a repeat night meeting at 6:30 (we used to meet at 7pm but especially in the winter it seems so darn late getting home). Our night group is really a very fun group--most have obligations during the day (work, active volunteering, etc) or just like the more "loose" atmosphere of night meetings. One thing I'd suggest is to offer some beginner classes along with marketing your programming and work. Beginner classes may really draw in those people that work,would like to learn, but obviously can not go to daytime classes. We do ours on Sat. Teach basics--use of rotary cutter and ruler, 1/4" seam, we go with rail fence, HST, FG, drunkards path and then how to finish. That gives lots of basics and allows for them to be creative.