I finally have gotten enough accounts that it is time to upgrade to a commercial mower. My local dane dealer has two 2001 super surfers that are demos one 48" with a 17hp kawasaki with 24 hours on it. The other is a 52" with a 18 hp kohler with 26 hours. Both are priced the same what advantages does one have over the other? He also has a new 48" 17 hp kawasaki for 500 dollars more then the demos, aswell as a 52" with a 22 hp kohler for 700 more then the demos. Would it be a better option for me to buy one of the new machines? Most of my lawns are 15k to 30k square foot and no gates to go through sofar. I appreciate your opinions and help.