We are looking at buying a cmm. the problem is everybody says different things. wanted to buy a cnc cmm. friend said maintenance is a pain. went to b&s they wanted to sale us a non cnc for $30,000, we have a 95 b&s micro val. should we upgrade the software or just fix the machine or buy new. I have read the older ones are better cause the rigidity of the frame. not sure where to go. our cmm has all the bells and whistles there is just a z axis read error.