Not trying to start a fight, just posting more info. It depends on what you need from the Altoz. The least expensive tracked ride-on model actually starts at $17K (then go as high as $25K):
The Altoz TRX has big features and even bigger benefits. Get the most from your tracked, all terrain zero turn mower. Explore the lineup!
altoz.com
In my area there are a fair amount of used ones anywhere from $9K-$14K.
Also, most larger commercial-grade ZT's will run from there the whole way up to the low-30K's, so Altoz is definitely not the only one that is more than some SCUTs.
I also agree with posts above that recommend the Deere 1400's, but not sure I agree with the rear-discharge deck. They do in fact handle the thick grass better, but they don't spread out the clippings as well as a side discharge. But again, it depends on what you are looking for/expecting as far as cut quality.