From a monetary standpoint, I’d echo the $5MM net worth figure mentioned as a minimum for being considered “rich.”
Many, especially in Shallowfornia, (I’ve named it this, and I’m a native) like to give the “appearance of wealth,” but if you knew their net worth, you’d fall on the floor laughing.
For me, net worth is about being able to live the life I want to live–enjoying a great home, a great career, a loving family, friends, and life itself–without worrying about finances.