Hello Jayson, this is a creative post, I must say. Now, where do I sign up for a visit to the Wine Cave lol? Seriously speaking, it is thermally efficient to store the wine in the desired conditions. Thinking about it, Cave or la cave is a literal translation of storage cellar and an underground space in french and is often understood as a wine cellar and not an actual cave. Excuse my musings, just thinking (and writing) out loud.
Would you ever consider creating a subterranean home built within a cave?