We are clearing out the 50 stitch for $109.00 and just now getting back in the 80 stitch. and it will be selling for $144.00. At least that is what the papers say right now.
The difference is the SQ9000 has the monogramming you can do with it. BUT the monogramming can't be adjusted to a larger size nor can it be any more that capital letters. It is the only thing I don't like about th SQ9000. I do like having the extra table for quilting that the SQ 9000 has that the 50 stitch does not have.
Good luck in deciding.