About 8 years ago I had intended on buying a new 4wd Kubota, but after realizing how absurd the additional cost of 4wd is compared to 2wd I opted to purchase a 45hp 2wd model, as opposed to paying the same price for a 25hp 4wd, or as opposed to paying an additional 6 or 7k for a 45hp 4wd.
I feel that tractor manufacturers are overcharging for 4wd due to their popularity, much like the auto makers do with pickup trucks. Four wheel drive used to be a relatively inexpensive option for a pickup, until a multitude of Southerners were summoned by the Redneck mating call of off-road tires humming on the asphalt.
Since my purchase, I have absolutely no regrets. Sure, there are rare occasions when I could probably use a 4wd. On those rare occasions I'm usually able to improvise by way of using counter weight, engaging the differential lock, changing angle of attack, or simply saying, �screw it� and proceed to move elsewhere and tear up something else. For the most part (97.25% of the time) I don't need 4wd. I certainly don't need it for mowing, road maintenance, and most FEL work. If I were backing out of a sand pit with a full bucket and loading dump trucks on a regular basis a 4wd would certainly come in handy.
A 2wd tractor also provides for a tighter, quicker turning radius without using the turning brake, less wear and tear on the turf when turning, fewer expensive moving parts, less maintenance, and whole lot less overconfidence when approaching a task you should probably avoid.............. I've yet to stick my 2wd. Not saying that I never will. I just tend to avoid those scenarios. Same goes for my 2wd pickup.
I'm not knocking 4wd tractors or pickups, as I think they're excellent machines to have. Just depends on a person's needs, or their desire to spend extra for an option they may rarely need. For me, monetarily, the ends don't justify the means............ I took the money I saved on my tractor purchase and spent it on implements, recreational activities, a new guitar, and a couple of girlfriends.