I would keep the Bernina. No way would I sell/trade for another brand. I just don't think you would be happy with anything else. Why would you consider another machine?
Berninas are top of the line in sewing/machine embroidery.
(There is a dealer that is always trying to get me to trade my Berninas for a Phaff, my husband offered to buy me a new Phaff for Xmas because my Berninas are older models, I said No thank you, I love my Berninas and do not want a new Phaff)