Not to be too redundant, but I originally used a 4WD Kubota tractor with a 60" rear-mount mower. It took me 5 hours to mow 5 acres, and then I had to trim around trees with a push mower. I bought a Bad Boy ZTR from TSC about 15 years ago, and it mows the same 5 acres in 90 minutes, with no need to trim around trees. The only caveat is that the ZTR is not so good on hills. There are many good brands available. The TSC version of BadBoy seems like a bargain for the price and how it is built. It is a low-speed pro model for a bit more than $5000. The cheapo consumer models with a stamped deck usually go for $3000; avoid them. Most pro models by other brands go for $10000 and up. They do mow a bit faster and may have a suspension. But forget about a riding mower for mowing; it is not very good at the job. The ZTR is not very good for towing, though.