In the next few months I will be in the market for a ZTR. I am purchasing a home on a 1 acre lot, wide open with a slight slope. I do not want to purchase a mower that is overkill. I have heard to stay away from Home Depot and Lowes. Is it worth it to spend the extra money and by an "entry-level" commercial unit? Or will typical residentials like Toro Z5000 or Deere Z445 be sufficient? Some of the commercial units I saw were the Hustler Fastrak 48", Scag FreedomZ, and Bad Boy ZT. Any suggestions on ZTR??