I find that odd, basic aircon is just something waiting to go wrong, but climate control is nice. You buy a car, you tell it you want in my case 22 degrees, and then you never touch the controls again. If the air is humid, it can strip water out of the air to clear the windows far better than heat, and I don't miss the constant faffing about with heater controls from the cars of my youth. Lovely. Mind you, if I want old school heater controls I have my kit car which just has an air scoop that throws air in your face (and flies) and laughably inadequate heating in true 70's reproduction style
My wife has an Alfa GT V6 for these sorts of reasons though. You can't get that engine any more, there may never be another like it. Most of the modern safety and economy features that take control away from the driver just aren't present, so as you say she is quite happy to keep it for 20 to 30 years on top of the 5 or so she has already had it.