If it fits your budget I would recommend going straight to the 7700.
I love my 6600. I don't plan to upgrade. However, if I planned to start garment sewing again I would absolutely make the investment. The free-arm makes garment work so much easier. I can think of many ways in which it would be useful to quilting, too. The added bonus of two more inches of harp for quilting would "seal the deal."
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- necessity is the mother of invention. lazy is the crazy aunt.
