I am looking at the Millie APQS machine. I met with a distributor today and she showed me quite a bit and made some wonderful recommendations. She does not have the Bliss Track and doesn't use the Quilt Glide. If I add the Bliss Tracks, is the Quilt Glide really necessary? Quilt Glide price is additional 1,250, Bliss Track is additional 1,000.