I have a Tin Lizzy I paid 3500 for used. Works fine but if you buy one, get the light weight one. My sewing machine is 90 lbs and trying to do FMQ is..... challenging. "A body in motion tends to stay in motion unless acted upon by an outside force". Or, with that much weight rolling in one direction, it takes a lot of force to make it move in a different direction. The slightly later Tin Lizzy machines are around 40 lbs and move much easier on the frame.
It's OK though, I use a QBot on mine for most of my block stitching and groovy boards (which I make myself) for edges. This way all the blocks are done identical and the borders I can tailor make for the length of the quilt.
Make sure you see it work and try to buy locally. Shipping on these things is outrageous. tim in san jose