I like them, but when you add postage they are a bit expensive over here. But if you want to make a scrappy quilt it is often cheaper to buy charms than to buy lots of yardage and chop up only a little of it (yes, it all goes in the stash - but it is an up-front cost for that quilt). Most of my new quilters don't have a big stash to choose from to make a scrappy quilt, and they like that they can buy pieces of "matching" fabrics to play with.
I buy charm packs 20 or 30 at a time, and when a box of them arrives in the mail every one rushes to pick through them all and choose something for themselves lol.
I am working on a monster scrappy quilt ATM made from about
25 charm packs from 8 or 9 different fabric lines. I just busted them open and sorted them arbitrarily into lights and darks and started sewing.
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would probably never have got around to cutting all those pieces from my enormous stash. I HATE cutting into the width of the fabric for a small piece! Silly, isn't it?