I have only rarely used a collection - a couple of times I've done small projects with charm packs supplemented by yardage from my stash. There are usually some fabrics in every collection that I don't like so I prefer to mix and match my own. Having said that, I've just ordered some of the collection of Moda 'Rouenneries' to make a throw for our sofa so I can be sucked in too! But they are especially beautiful, I think, and I like the French connection!