Texas715, I think I'd wonder why a landscaping company is selling a 3-yr old tractor with only 2800 hours. Maybe it's because the engine warranty is 3 years or 2,000 hours and they want to always have a warranty on their equipment. If you drove an average speed of 40 MPH in your truck, you'd have 112,000 miles at 2800 hours. Does that help to put the hours into perspective? For a diesel engine, that is not many hours. They should last out to 10,000 easily if maintained properly.
I'd just ask some questions and really examine the tractor well. Murphs comments about how many operators makes lots of sense to me. However, for the last year, I've seen a landscaper doing work on a highway I drive every day. It always seems that I see the same person driving the tractor. Is this is a commercial landscaper who does big projects? Those guys know that the perception of their company and the expectation of a quality job may be improved by having very nice looking/operating equipment. This tractor may have had only one primary operator.