Billsgirl - I have the 1600P - four reasons - 1) Non-computerized for hauling around to retreats (even though it weighs a ton!) 2) It has a thread cutter on it (most other straight stitch non computerized machines didn't have this feature) 3) It didn't need special expensive needles like the DB & DBX do. 4) It has the large 9"x5" throat area. When I first got it, it was very noisey, and got worse - so took it in, twice - needed lots of oiling to begin with - now it gets oiled the same as any of my other machines. It's still noisier than my other comuterized machines, but this one is a more industrial strength machine. It goes through layers of denim like a hot knife through butter! I'm very happy with it!