I accumulated lots of tops in my first 6 years of quilting, because I couldn't get my machine to co-operate with quilting. Now that I've retired and have had more time to work on it, I'm beginning to win that battle, and so this year is a quilting year! It's great to have lots to practice on. But I've still pieced a couple more tops to give myself some variety. And my current project sometimes comes to a temporary halt because I don't buy all my border and backing fabric and quilting threads before I start - I so often change my mind as I go on, and I can't afford to buy stuff that doesn't get used. So I sometimes have to put a project aside until I can get to the quilt shop, and then its useful to have a WIP to pick up.