Wyoming is nice but, the influx of rich people isn't doing the state any favors. Any of the oil boom states in that part of the USA have some issues with costs. Sure, if I was a billionaire it wouldn't matter but, that isn't realistic for most people.
If money is truly not an issue, Singapore and Monaco become viable along with the Scandinavian nations and Switzerland.
If money really isn't an issue, Miami, Florida has a lot to offer with great access to the Caribbean, the Gulf, and an awesome city life with easy access to most of the Southeast for your fix away from the water for mountains, forests, etc.
If money is truly not an issue, Singapore and Monaco become viable along with the Scandinavian nations and Switzerland.
If money really isn't an issue, Miami, Florida has a lot to offer with great access to the Caribbean, the Gulf, and an awesome city life with easy access to most of the Southeast for your fix away from the water for mountains, forests, etc.