This thread is really causing me a problem!! I spent the afternoon looking around at the mower shops instead of cutting my grass!
Here is a little range of price and quality.
Cub Cadet 3235 60" deck, 25 HP Kohler, Hydro drive and lift, power steering, tilt steering, adjustable seat, their best Garden Tractor = $6445. 00
White Outdoor garden tractor (MTD. . also the same as YardMan, TroyBilt models) 25HP Briggs Vanguard, 54" deck, Hydro drive, manual lift deck = $3100. 00. This is the best MTD economy version.
Yard Machine MTD Garden Tractor at Walmart 44" deck, hydro drive 20HP Briggs = $2100. 00
I looked at a Scag Turf Tiger ZTR 31 HP mower with a 72" deck. That thing is SWEET! The deck is easily adjustable for exact inch increments of mowing height. Its Kawasaki gas engine is also fuel injected. The shop owner (and also the Asst. Chief on my Vol. Fire Dept. ) said he would drop it off at my house and let me try it out as it was a demo. Aparently the Scag rep said he wasn't to sell it... just let people try it. Guess what I did!! Mowed my yard in 20 minutes flat and didn't need to trim. It usually takes me 1 1/2 hours. Neighbors were looking at me like I was insane!! First a loud diesel pickup... now a lawnmower three times the size I need and it sounds like a B29 flying fortress on takeoff

. It cost over $10,000 so I told him he could have it back tomorrow :{ .
I went to a Dixie Chopper dealer and their highest priced ZTR was a 50HP Yanmar Turbo Diesel 72". $16500 list!! That thing was absolutely gigantic. But nonetheless cool. They also have that twin 25HP Kohler S'Burb'n Turb'n 72" mower that can run on either one or two engines depending on the job at hand. Really cool.
A rarely seen tractor that is built like a tank is the Ingersoll 4021PS. Its totally hydraulic powered. The 21HP Kohler is directly coupled to a hydro pump. Steering, Drive, Lift is all hydro. It also has hydro outlets on the front, rear, and a rear hydro PTO. It can run snowblowers, rear tillers, log splitters, rear brush mowers, rear finish mowers, chippers etc... all the attachments are hydro powered. It also has 32"x8" tires on 16" rear rims. Kinda like mini tractor. They used to be known as the Case 444's.
Meantime I'll keep pluggin along on my Snapper Comet 30" 8HP Rear Engine rider. My three older Cubs (1960's models) are in various states of restoration. I love talking about lawnmowers!