I am looking at a used Avenger 200t, with an Acramatic 850SX control anything to look for in particular? I read somewhere, can't find the thread again, that the control panel is a major concern. As in if anything goes wrong Siemens does not support it and will only sell you a complete new operators console for many thousands of dollars. Is this a real concern? it seems there are a lot of these machine/controls out there and they can't fail all that often. Even if a switch or button went bad there has to be some way of repairing or working around it, is there not. I'm just looking for comments, ideas on what to look for or at, and any other thing to help decide if this is a good machine or not.