I own a part time grass cutting business, and am currently considering upgrading my equipment. I have been debating purchasing a new 36" walk behind for ~$2300, but I recently found a used Great Dane ZTR. He wants $3500 for the mower and $700 for a 6'x12' trailor. Do you all think I should get the ZTR and trailor for $4200 or go with the new 36" walk behind for $2300? Bare in mind that I cut grass only part time, and will not be able to expand my business more than what I can cut from 4:00 to dark on weekdays and all day on weekends. What would you all do if you were me? Thanks!