It does amaze me at how wide most new machines are - being able to easily do a cuff was normal with older machines.
I know the one Singer open arm I had was wider than my Vikings and Berninas - but my son has that one now. But if you are OK with 2.5" to 3", then you won't have any problem finding one. If you want narrower, you are pretty much limited to industrial or spending a lot for a Singer 222.