I have never bought a jelly roll but I LOVE fat quarters and charm packs. This is mostly because i am somewhat of a "fabric collector" and I like scrappy quilts. If I fall in love with a fabric but don't have anything specific in mind for it, I buy a FQ or a regular quarter, just to have it. Then later I'll use it in a scrappy or two. If there is a whole line that just does it for me, but I don't have anything specific in mind or the money to buy a FQ of each fabric, I will get a charm pack. That way, I have some of each fabric, even if it is just a little bit.