For me fun of the chase in finding just the right fabrics for a project is greater than my desire to make a particular design just like one I saw somewhere.
There was one gorgeous quilt displayed at the first show I ever attended that I fell in love with. However the sticker shock from the cost of the kit nipped that one in the bud right off the bat!
I have a rather extensive stash, but it was accumulated over a lot of years and in most cases only a few pieces at a time. So when I get ready to make something I can shop my stash first then add the individual fabrics necessary to do whatever I'm contemplating, usually without a great deal of expense at any one time.
So I'm just not one to purchase kits.