We also have tons of fabric donated and ladies will get together and put together "kits" with a pattern. You are encouraged to do only what you want to do. If you only want to put the top together, you can, or if you only want to quilt, or bind or any or all of the above. You just turn it back in when you are done with whatever part of the sewing you want to do. I have one that I picked up and have put the top together last weekend. I really dislike the backing fabric and the binding fabric they gave with it so I will pull from my stash. I will also donate the batting I use, since I buy it by the 40 yard roll anyway. I like to finish the whole thing and use the quilt to practice my free motion quilting.
Fortunately since we are a large guild, we get some really fantastic speakers and teachers. We have dues of $25 a year, not bad. Every other year we put on a quilt show and that is our big fundraiser. I have never worked the quilt show, it is encouraged, but not required.