If you are going to use machine(s) for quilting only then a machine with a wide throat would be good because you can piece the quilt and then machine quilt it. If you do all sorts of sewing then a good multi-purpose sewing machine and a wide throat machine would work well. It all depends on your buget. You can spend 100K and get everything anyone would ever want. However, that is probably not the case. I have a Viking Mega-Quilter and a Grace Frame for machine quilting and for piecing and regular sewing I have a Bernina Aurora 440QE and a 1995 Pfaff 7550 to take to classes, etc.