It took a long time thinking and comparing before I bought a new sewing machine summer 2014. Wide sewing space, good lightning and the dual feed have been very helpful and needed. There is also a knee lift in the machine, but I am not used on it yet.
There is so convincing introductory video on YouTube of Pfaff Quilt Expression 4.2 sewing machine that I could not resist (video on top of this page).
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Edit 01/07/2019: I sold this machine.