I have a Gammill Vision 18-8. I bought it at the Houston International Quilt Festival in November 2011 (less than 1 1/2 years ago). In the 2 1/2 years I was quilting before I bought it, I quilted around 10 quilts on my DSM. After getting it, I quilted over 20 in first 12 months. That number would probably be much higher if I didn't work full time and could quilt all day.