Half Acre and you need a tractor? lol
While this craftsman says its hydrostatic, is it belt driven or does it have an actual driveshaft between the engine and the rear transmission? If its belt, its not a true hydrostatic and you wont really gain anything from it as the belt can still slip. However, since you said its flat land, you shouldn't have any problems unless you try to pull something heavy behind it.
I have a 1986 CubCadet 1812... 1600-1800hrs on it with the original Kohler engine still in use. 52in Mower with hydraulic lift, 50 in front snow blade with hydraulic power angle, 70lbs wheel weights and chains (for winter). Its a true Hydrostatic tractor, meaning it has an actual drive shaft going from the engine to the rear transmission and is all metal, not like this POS stuff they make today (not talking about craftsman specifically as they are all going to plastic for fenders, etc). It weighs about 1000lbs. The only thing that lets it down is that its only two wheel drive.
My Dad bought it new from a dealer. I would highly recommend going the ways of dealers for their tractor. IIRC, the warranty is much better than anything you can get at say Home Depot or Sears. However, if there is a major special going on at the stores you have to weigh the two. I have seen deals where you could get 500 dollar gift card, etc, which in that case, it might be better. Us people that have bigger garden tractors that the Home Depots and Sears cant legally sell call those Home Depot/Sears tractors throw away tractors as they are built cheap and will only last a few years.
However, you need to find a good dealer, one you trust and don't be afraid to have to travel a little to get there. Our Cub Dealer is about 45min away, but its a great, honest place.
We are looking at getting a new Tractor and are currently looking at the CubCadet Yanmar Sub Compact 2400. Its bigger than what we have, but its the only thing comparable to the 1812. All the new Garden Tractors are too lightly built. We would get the 60in mid mount deck, the front loader and front 60in blade.
http://www.yanmartractor.com/pdfs/sc2400.pdfAs for John Deere... Its not just John Deere, the other big ones are CubCadet, Yanmar, New Holland and Kubota. Typically, areas are all one type due to the dealership. For Example, when driving to the Cub dealer on a summer day, you will see a lot of Cub cadets along the way. Driving to a Deere Dealer, you will see a lot of Deere tractors in the yards. As for quality, they are all pretty much the same, every model is going to have some issues compared to another and it comes down to a few things: comfort, financing, and Brand(personal reasons).
When i say brand, i don't mean the John Deere effect. For example, My Grandpa served in WWII. My Uncle who lived with my Grand Parents, would have never been allowed to have a Kubota or Yanmar, because they are Japanese built.
So did it come yet?