I have a Singer Touch and Sew 758 which is wonderful, but I would like a second machine for backup, take to classes, and make the kind of buttonholes that the machine will measure the size and remember the size. I have looked at Viking and Bernina. I have heard that Bernina is wonderful but overpriced. Please send me some suggestions. I looked at the Bernina Activa 230 PE and the Viking Emeralds.