Different guilds do different things. Most have some sort of ongoing charity project. Meetings usually have committee reports, a treasurer's report and that sort of thing. Then usually a program or presentation and then show and share.
I've been to 5 different guilds and have never seen a conference table or exchanged a coupon.
Dues in the guilds range from $12 a year to $25 a year. Meetings range from once a month, every other month and every three months.