I currently have a JD 757 with 1200 hours on it. I have 10 weekly accounts and I gross 500 a week. Due to sports in the beginning of the season I wasn't able to get as many lawn as I wanted. I want to buy a new mower for next season. I'm thinking a kubota zd323. I know I can get at least 20 lawns next season and have enough money to purchase a new mower at the moment. I just need some advice, should I keep my JD as a backup? Or sell it for 3.5k and put I towards the new kubota?