I have had my mom's 830 Record for 20 years. I was afraid that I would "wear it out" with quilting large, heavy quilts, so I bought a vintage Singer 15-31 for quilting. I still prefer my Bernina with the knee lift and perfectly functioning walking foot. I also prefer the location of the bobbin for access during quilting, so I usually go back to the Bernina. For dressmaking, I love to use all the feet I have accumulated over the years.
That said, I would love to have needle up/down, a blanket stitch, and a three-step zigzag (for bra-making!). I have tried to use my daughter's Babylock for those things, but it just feels foreign to me. I guess I am only suited for mechanical machines.
Side note: I found an LED bulb online with the correct bayonet-style base last week. Works like a charm, but I think I am going to add another stick on light for night sewing.