I had a chance to demo my friends used Kubota ZD-28 today, and these are the observations that I made. 1. The mower had exactly 351 hours on it. 2. The deck was scuffed up on the sides, but didn't have any visible signs of hard impacts such as deep gashes or dents. The front, and back tires also looked to be in good shape. 3. The grease fitting was broke off of left front wheel spindle. I'm talking about the big front tire. The wheel still moves ( swivels ) freely without any noticeable play in it, so I don't believe the bearings have been damaged due to lack of grease so far. 4. The left side anti scalp roller is bent slightly, and the wheel needs replacing. 5. The grease fitting on the right side anti scalp roller is broke off, and that wheel also needs replacing. 6. The blades were almost new, and had just been sharpened for the first time. 7. The mower ran and cut great. That diesel engine sure did sound good, but it wasn't as fast as the Super Z, but I don't think that I can realistically mow my yard at over 10mph due to roughness anyway. 8. The ride did seem a little softer than the Super Z. This mower had been purchased in June of last year, and had been used to mow city park areas. The owner told me that the parks have a lot of those cut off ( 2' high ) telephone post in the ground everywhere, and he figures thats where the grease fittings got knocked off while he was mowing up close and around those. Does this sound like normal wear on a mower used commercially in those type of conditions, with that many hours on it? Is it hard to repair broke off grease fittings, and should this be a big concern in my purchase ? Like I said in my earlier post the price is $8000, and according to the Kubota web-sight the warranty is transferable, so it still has warranty till June 2005. Any insight from you professionals would be greatly appreciated.