Price aside, I think they are absolutely lovely. I similarly like the moon phase the best. However, I too struggle with the cost. You are in VC, Patek, or ALS range at $20,000. In my view, this comes down to opportunity cost.
But this one, in particular, is absolutely fantastic. The black-dialed CO is truly an iconic watch and one that I think history will remember fondly. Congratulations on getting your grail, and I wish you the best of luck transitioning into this new phase of the hobby!