Buy two. A straight stitch only machine will be the best for quilting and also for piecing. I like Brother 1500 and the Juki straight stitch for quilting. Both are excellent. For piecing and sewing I use a variety of my machines. I have a Brother, Bernina, Janome and Eversewn Sparrow 30. i really like the Eversewn Sparrow 30 because it has every feature of a high end machine and was under $400. Really for sewing/decorative stitching any brand will do fine. Get one that has the features you like at the price you want to pay.