@phil...Unless politics will be totally screwy, I am planning to stay put no matter the bitcoin price.
GDP/capita in US is higher that in UK and Germany, albeit lower than in Switzerland and, interestingly, Ireland, which means that salaries are higher as well.
The long term cap gains are manageable, too at 20-23.8% (with no taxes on the first 89K for a couple and 15% on the first $553K).