At the end of the day, I don't want to sound like a Texan, but as far as elevation on "high ground" goes, I've stood at some pretty high points loving what I'm seeing.
Thing is though, the below pic is my back yard mowing (which I do for my shooting range LOL).
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Elevation per my zip code is slightly over 1,000 feet (and there is a creek right behind the tree line at the bottom of the picture that my boys loved to play in).
Be it well over 10k feet or at sea level, what makes you happy is what makes you happy.
Be it we retire somewhere else in NC, East TN or out west where the snow isn't to bad, I'll be happy as long as my wife is by my side (Florida or the North East is out of the question though, and my wife agrees, which is one reason why I think I married her

).