I have decided on an Exmark 48" gear drive, but can't decide on getting a fixed deck vs a floating deck. I think the price difference is around $700. I am not a comercial mower, but I do cut about 4 yards in my neighborhood. For the price difference, I think the only difference is bigger tires and the floating deck. Could someone help justify the large price difference. Would I really be able to see the difference. I would love to get the hydro, but just too much money for me to spend.