Ooooohhhm, I am so JEALOUS!!I have played with it at two shows and both gave better prices if you bought there. VT Quilt Show had $4,500 I think. I talked with David Taylor there, check his website. He's really knowledgeable and represents them. However, he does not recommend the stitch regulator. It's not what you expect - it's a weird little gizmo that you put under the fabric, and you can always buy it later if you find you need it. Do check around for specials, but you need a relationship with the rep, I think. You'll want lessons, etc. In my area, a local FMQ is designated dealer though her studio is in her house. If I could buy one, I'd go to her. Also there are a couple of good dealers not far from me - Notion to Quilt, in Shelburne MA, and one in Middlebury VT. There should be more around if you look for them.
They give you so much space to move the quilt around!! In general, I've hear HQ has a good reputation, but I'm sure you'll get all kinds of pros and cons on this board. I don't like the feel of a longarm, and don't have room for those huge setups. You could fit the Sweetie in somewhere. OK, there is no commandment about coveting quilting machines, so I'll continue to do so. Good luck to you!!