I have a 54 inch zero turn mower for my yard. Takes 2 hours to mow and 2 gallons of gas for 3 acres.
I have a 1972 case 1175 with a 12 foot Bush Hog. Takes 16 hours to mow 55 acres and right at 15 gallons of diesel, though it varies with taller grass. I wouldn't consider my zero turn mower. Nor could I afford it. Then consider a case 1175 can be bought for the price of a husqvaurna 54 inch mower. In my case dad bought the tractor new. The bush hog would add to the cost. But how much is your time worth? I work full time and that's my weekend mowing, but it sure is a peacefull weekend!