I went to my local Harbor Freight store to look for blades and they had lots on the rack, so I got seven packages. When I placed them on the counter, the cashier looked at me and said, "You didn't get all of them, did you?" I told her no, there were still quite a few left. Then she said, "Every time we get those in they sell out really fast. We just put those new ones out yesterday!" So I asked, "You know who's buying them, don't you?", to which she replied quite emphatically, "QUILTERS!"