I have an old Craftsman 20" mower and recently moved into a new house. 15,000 sq. feet of lawn to manage I am looking at getting a bigger mower. This one takes way too much time to cut this size lawn. Any suggestions would be greatly appreciated. Do I simply get a good Toro residential 22" self propelled mower. I was also looking at commercial walk behinds, but have limited storage space in my garage so I found on-line: Red Hawk/ Bradley 32" and a Billy Goat 33", other option was a 32" Toro but that is about $1000 more - not sure if it is worth it or in my budget. Appreciate any comments on the above.