I have a Husqvarna YT150, twin blade, 42" swath, 15 hp Kohler one lunger, hydrostatic tranny. I bought it new in 1999, 386.6 hours on it now. Around $1400.00 back then. I replaced the belts a couple years ago, mainly because I got something jambed up in it and damaged the belt. The switch that engages the mower was giving me some problems last fall, but some duct tape squared that away. Has a pressurized oil system which is a plus. A lot of riders engines are gravity lubed and if you have slopes, can cause a problem. Some new plugs now and then, change the oil now and then, clean and change the air filter now and then. I just put tubes in the front tires as they were slowly losing air. New battery a couple years ago. Runs like a top.
I change the blades in the fall for blades that have more lift and attach my Cyclone Rake to drag around behind to get up my oak leaves. 22 oak trees. If you have leaves, the Cyclone Rake is the absolute best system for many reasons. 28 years of leaf picken' using every tool known to man, I know what I'm talkin' about. Cyclone Rake. God's gift to the overtreed homeowner.