I have owned three Berninas and currently use my 1260 for most all my regular piecing. Their stitch is indeed beautiful! However, I have to bring up a problem that I have that may plague other early Bernina electronic machines like mine. That is its circuit board. Some people call them the motherboard. I have looked and, so far, the boards in machines of my 1260's era have no replacement availability on their boards. Also, very, very few local dealers are equipped to attempt repairing electronic boards. The protocol is to replace the board. The "rumors" that I have heard are that the factory where these machines were built that also housed extra parts was some how devastated (flood? fire?) making especially the electronics for repairs practically nonexistant. This might impact your consideration when buying a used Bernina electronic machine. If I were in the market, an important question would be how many hours has it been used if that information can be determined.
So what is my 1260 doing? I use the feed dog throat plate with the straight stitch hole and a 1/4" foot. Presently every day or two, my machine decides to arbitrarily go to zig zag thereby breaking the needle. I've tried using a zig zag foot and throat plate but I am spoiled to the stitch I get with the straight piecing set up. Also, if I didn't wear glasses, I would be risking a piece of needle in the eye this has happened so much. It just makes me sick. It's been worked on twice and is perfect except for its circuit board. SIGH~
For this reason, I have begun to acquire several of the best purely mechanical machines that I can find including a Necchi supernova. I am fortunate enough to have a sewing machine mechanic who is also a mechanical engineer to maintain, clean and refurbish my machines. He swears by the Necchis especially those of the totally mechanical period.
My machines include (in addition to Bernina 1260) Necchi Supernova, Singer 401, Bernina 711, Singer Featherweight, Kenmore 3/4 158.1040 which is my go-to for classes and retreats, and Morse 4400 Fotomatic. These are split between our summer and winter homes. I am falling in love with the Supernova. It is a whale of a machine but HEAVY!