Bless you dude. I feel the same way. Lived in two of the big three cities back in the US and don't want to go back at all. California was my last stop before I came here for good. People ask me all the time and they seem shocked when I reply that unless something tragic happens, I live here.
You're right about missing culture. Thats perhaps one of the biggest things I miss. Seeing and experiencing actual art. This place is completely devoid of anything with substance although I was quite pleased to be able to take my wife to see West Side Story about a year ago at one of the theaters here.
If you're fortunate enough to have the money to live life in California, it can be a pretty pleasant place but like you said, it would require being a millionaire to do that today. Had friends in Newport Beach and that was always fun. The surf competition in Huntington was always a blast.
But the quality of life here far supersedes that in that it's always available, doesnt require a car (for the most part) and is within financial means especially if you have the ability to live an above average life here.
Good for you dude. Hope life continues to bless you