We've just started a small mowing business. We will start with about 20 lawns a week. Most are small residential lawns. We need a couple of mowers. I think I want to start with push mowers. Is it worth investing in the commercial mowers? Do you prefer Honda, Toro, Snapper or Exmark? I've heard we should avoid the Exmark 26", but would like a bigger deck than the 21" on at least one mower. Any suggestions?