No capital gains is what does it for you because it means the money you earn in your sleep is tax free (at least if you are not a US citizen). There is no need

No capital gains is what does it for you because it means the money you earn in your sleep is tax free (at least if you are not a US citizen). There is no need to use the banks or brokers in the country you're citizen of. It's important where you live officially and with a citizenship it's easier to claim residence.