I am about to pick up a 2007 CAT 277b for my landscape company. Enclosed cab, 1600 hrs, great condition.. $27,000. Anyone have any advice on why I should not buy this machine? Are there any really crucial things that I need to look at before the purchase? What types of things tend to go wrong on them? I attached a picture... The tracks were completely caked on with mud when I went to take a look at it. It has been a rental for the last 6 months but before that it was a one owner machine. Its on a long term rent right now, that is why the tracks look like that. The only thing that scares me is the fact that when its rented, companies usually dont take care of it like it is your own machine.