I'm looking to buy a truck mount. Bridgepoint has a"used" Everest 650 for sale. It has 3.500 hundred hours... $15.000 thousand. I know that's a lot of hours for a machine. Does anyone know what the longevity of these machines are? For example... If the Everest 650 is purchased new, does anyone know the predicted life of this particular machine is? I understand that it all depends on how you take care of it. Any feedback on this machine would be great...Pros and Cons?