I think that you are getting a lot of biased opinions here. People have a tendency to justify a purchase, particularly an expensive one. I have a
BX24 and the 54" MMM. After one year with it I have decided to put the MMM away and bought a riding mower for the following reasons:
1.) Time and effort spent removing loader and backhoe (and/or 3PH implement). I laugh when I see people here say that they can do it fast and it is no bother. It is actually a tremendous bother. Even 15-20 minutes each way is 40 minutes for a full change back and forth. I could have most of my mowing done by then. Not to mention that other jobs get interrupted for mowing duty. Having to change-out the tractor seriously discouraged me from mowing on a regular basis.
2.) The deck is heavy and difficult to maneuver. Prepare to bust knuckles and break your back pushing it under the tractor and hooking up the PTO, changing wheel heights, changing blades, etc. I can't tell you how many times I was on my back in a wet garage, drenched in sweat and covered with bugs and grease practicing the "F" word while trying to line up splines.
3.) Servicing the deck is painful - draining the gear oil in particular which requires standing it up on one end and is easily a 2-3 man job.
4.) Set up and leveling of the deck is difficult - the manual may as well be written in Chinese. I was never able to get it set up right for a level cut after multiple attempts.
5.) Poor turning radius (compared to lawn tractors).
6.) Lots of extra hours on the tractor doing something a cheap mower does better.
7.) The heavy tractor mashes down the grass leaving two uncut strips consistently unless you mow very frequently with short, dry grass.
I mowed with the
BX24 and 54" deck for over a year before I gave up. I have bought a Husqvarna 24HP with 54" deck for about $1600, which is just about what I paid for the MMM. Ever sice I got it I have been kicking myself for suffering with the MMM for as long as I did. The Husq even gives me a better cut, is easier to maintain and level, and you just can't beat jump-on-and-mow as opposed to 20+ minutes of torture before and after mowing. Also I use the mower for other duties like towing a trailer, thatching, spreading - a lawn tractor does those chores better.
Hope that helped.