Saddle Stitch vs Machine Stitching
I will continue to resist the urge to buy a stitching machine as the saddle stitch which I use predominantly is far superior to any machine stitch.
Machine stitching creates a lock stitch, where each stitch comprises of two threads, that are locked around each other, then pulled tight.
While this is a clever way of doing things, should one of the threads ever fail, then the whole row of stitching is compromised
Saddle stitch is impossible to replicate by a machine. It requires two needles on the end of a single piece of thread. Both needles are passed through every hole in opposite directions.
The result is that each hole has two threads passing through it. Should one of the threads fail, the other, and each of the holes either side of it will still be in place. So the rest of the row of stitches will still hold strong.Thus a saddle stitched job will not fail in the same way a machine stitch can