Happiness is not really a good indicator. If you need that much to be happy, most likely once you have all that money, you still won't be happy. So might be bet

Happiness is not really a good indicator. If you need that much to be happy, most likely once you have all that money, you still won't be happy. So might be better to find out if it is happiness you really want or freedom from needs and necessities of this world. The price of that might be much less than 1200M dollars.