I have a cub cadet 1040 I cut 60 plus yards a week with it so lets say 35 acres a week
After 2 months and over 300 hours I just today had to change a deck belt.
I paid $1200 from the dealer
For a home owner cutting 3 acres a week get a mower like this and you will be fine. Just change your oil Keep air filter clean. Buy a small grease gun and put some in every fitting once a week or when ever it gets wet.
Lots of guys on here will say you can't cut more then a 1/4 acre a week with a riding mower they are the same guys that don't take care of there mower or buy the biggest one they can find just to say the have one.
(( racing is the only sport that you need two balls ))