The Coping Foot is very compact. You can saw very close to other obstacles. Do a sink cutout up against a back splash for instance or cut a bottom plate next to a stud. Any big scribing job is much easier with a Coping Foot because you can back bevel at will without making any adjustments to an adjustment screw. Finish carpenters use the jig saw mostly for back beveling irregular lines, and so the Coping Foot becomes the ideal base for the jig saw. Many carpenters never change back to a flat base unless they need to scroll.
The Coping Foot is formed from 14 ga. plated steel. You'll wear out a couple of jig saws before you wear out your Coping Foot.