Hello, I've got a hilly or uneven terrian yard and was wondering if a hydro or manual zero turn would be best. I had heard that I would ruin a hydro in a year or so. Is there any truth to this? Also, I can purchase a New John Deere Z225 for $2350 or Z245 for $2950...are these good deals? I have 1 1/4 acres to mow.