I read this post differently than most did. I read ‘wine cellar’ as a proper, standalone cellar unit like LeCache, with a ‘cooling unit’ in it, and ‘wine refrigerator’ as, well, that, since both exist, i.e. the ‘wine refrigerators’ from Wine Enthusiast - they are not cooled/regulated with a cooling unit, rather use refrigerator technologies, basically.
I have both. One LeCache with a (just replaced) cooling unit and a Wine Enthusiast Wine Vault. I prefer the latter. Quieter, more efficient, fantastic seal. If I were you, I’d go that route.