I tend to agree with the girls about buying bernina feet on ebay. I bought my walking foot from my dealer and then found it on ebay for almost half what I paid for it. :(
That being said, I love the bernina quarter inch foot #57 that has the quide attached. But when I need to do somthing that the guide is in the way, the other quater inch one is very nice. I love the markings on it. Shows a quarter inch from every side.
The janome feet are also sold at Hancock fabrics. They are so inexpensive compaired to the bernina. I bought every extra foot they make for mine. Just because specialty feet are wonderful tools. I love them. I also sew clothing and accessories, so many of these feet make my life easier.