I have a couple dozen WIPS myself. When a new quilter tells me that she is not going to begin any new projects until she is finished with the one she's working on, I just smile and say, "Uh-huh, sure." :-D
I think I have Quilter's ADD. As soon as I start one project, I can't wait to get to the next thing! I can't help it! I just want to do everything!!