Brent,
My neighbor just bought a 25 horse tractor mower from Sears a few months ago when they were on sale and he has mowed my upper lot a couple of times. It takes him about 10 minutes and me two hours with my walk behind self porpelled mower. He got the horsepower as he put a hitch on the front so he can move his boats and trailers around. I am really looking at getting one like it when they go on sale again. As you said, the attachments make the tractor cheap. I think he gave about $3,500 for the tractor and mower attachment.
Ron