OP, I had the exact same motivation as you: disgusted with the 4th "garden tractor" (lawnmower) that lasted only 3-4 years for $2-3k!!!. Bah.
After much shopping and asking around, I chose a
BX2660 with the 60" deck, plus some other implements that I needed. Under $13k (2009). nearly $3000 under list, and they delivered to Alabama with almost two hours of instructions/teaching, from KY at no extra charge. They also included some other (cheap) refinements for free. Barlow Tractor was my vendor and I was extremely happy with it. It's now 16 years old with no major problems -- but then it has less than 150 hours on it.

I've mowed 5 foot tall grass with it and it only bogged down once. Two minor annoyances since I've had it: 1) those <censored> "safety switches," and it just refuses to wash itself. AND it was ZERO interest from Kubota!!!!
Of course, expendables like oil and fluid changes, tires, and etc but that's on all of them. (I'm a big believer in preventative maintenance.)
It's time to change the fuel filters but I don't move so well anymore. I **will** get 'round-toit.'
Be sure to check your homeowners insurance, too, btw. I wasn't even supposed to mow the church! Don't tell, but I did it anyway...
And for some reason, I'm convinced I need a backhoe now. I've only needed one twice in 30 years but hey, I still want one of my own. <sigh>