I have some real reservations about machine models that are "low end" of major brands.
Be careful about those made with plastic parts in China and Taiwan because plastic parts will warp with heat created by heavy machine use-like free motion quilting. What about shopping for a used machine. I agree that you should go to a dealer that has lots of different brands-if you are open to that. I have heard nothing but good things about JUKI if you want a lower price workhorse of a machine. I happen to be a Bernina gal and have loved several over the years. As others have said, don't be in a hurry and do your homework.