I love tools of all kinds - sewing, quilting, woodworking, kitchen. It doesn't matter, I love them all. But I don't buy them all. I buy what I believe I will use enough to get my money's worth from. If I make a lot of cutting errors trying to "make-do" with a general purpose ruler, I then buy the specialty ruler. Fabric is too expensive for bad cuts. Specialty rulers are cheap if you will use them repeatedly or enough to pay for them.