Just to throw in my .02.. Possibly take a look at Husqvarna garden tractors? I was in the same dilemma last year and really wanted a X5 but couldn't see spending $5-6k on a mower, although I'm sure they are awesome I couldn't do it. Ended up with a GT48XLS with fabricated deck and tuff torq K66 tranny with diff lock. Not too fond of the BS motor but fired right up fine all last year and so far so good this year(knock on wood). Way more than enough power, couldn't bog it down even when I tried to mowing in the horse pasture a few times. My only dislike is the "rocker switch" for the diff lock since it takes a few seconds to engage and disengage. All for a $3500 price tag.... longevity is unknown though hoping it lasts 10+yrs