Lucky you for so many options locally!
While you mentioned this one was used ... how used?
Maybe it has just seen too many mile/stitches?? ... and perhaps your HQ contact has a directed you and Mario to resolution. With that in mind, it may be as good as new, once tended too. Of course, too, you may have spotted other models that have more bells and whistles, and want to trade up. Keep in mind that S16 has updated their machines, and if you have one of the original ones, there are other ones since. I think they are on the 3rd generation now?