I was going to suggest a Juki TL2010Q. This is a straight-stitch only machine that does 1500 stitches per minute and has a harp size of, I think, 9". It is loved by many for FMQ, and can also be used for fast piecing. I think this would be considerably less $$$ than the machines you are looking at. If you have ever considered quilting on a frame, then you might want to get the Juki and a Hinterberg stretch frame. Later on, if you ever upgrade to a longarm for the frame, you could use the Juki for piecing. Just a thought......