I'm not a fan of cabbed tractors in the woods. They tend not to hold up unless you are just sticking to well-maintained trails. People also tend to forget that a cab is not a substitute for FOPS (Falling Object Protection System) and an operator cage. If you are operating in such a manner as to need that sort of thing, cabs can be a false sense of security. However, I'm in Vermont. It's rarely so hot that I wish for AC on my tractor (though this summer was a real exception). If it's really cold out, I have appropriate gear to wear for those temperatures. When it is to the extremes of heat or cold that a cab would be nice, I generally have the luxury of simply not working in the woods, since I'm not doing this professionally. If I lived in an area where temperature extremes were more common, and/or I had to be working in them regularly, I'd consider a cab with some extra protection and heat/AC.