If you go to WCAF you can sometimes get good deals on the demo models on the floor. I bought my first good saw this way. Shipping from the floor to my shop turned out to be a little more complicated than anybody had hoped, but it all worked out in the end.
If you can find an old Pistorius saw with decent motors and which still has its in & out tables and has not been modified for some industrial process, go for it. Rugged as all get out, no exotic parts, any bonehead can understand it and fix it.