I've only visited the Aosta valley once, I think, but it definitely is a gem.
Although, to be fair, there's barely a corner of northern Italy that isn't beautiful…
Practicality of living is a real issue, though. People living in South Tyrol often have to travel all the way to Vienna if they need highly specialized medical services. Taxes are high, and bureaucracy tends to be maddeningly slow and convoluted. When I was still a child, corruption within public service agencies wasn't exactly a rarity, but I think they've improved quite a bit on that front.
But other than that, South Tyrol, specifically along the mountain sides along the Adige valley between Merano and Bolzano, is pretty much the only place on the planet outside the USA where I'd actually consider retiring to. Between Merano, Bolzano and Lana, you've got pretty much everything you need for your day-to-day life within short driving distance, the people are fantastic, the overall culture there is nearly perfectly compatible with myself, the area is stunning, the climate is relatively mild, and the local foods never disappoint.
Adige valley and Merano, looking south:
Fahlburg castle in Prissiano:
Hafling (where the Haflinger horses originate from):
The Dolomites:
Maaaaan, I miss living in the mountains…
Having no (actual) mountains anywhere is one of the few things I'm not looking forward to in Texas. But something's gotta give, I s'pose. ¯\_(ツ)_/¯