like anything in life, there are tradeoffs. the US passport is great because it allows easy employment access to US tech companies, who pay absurd amounts of money; if you live outside the US for at least 330 days, you aren't taxed federally on the first $105K or so. this allows one to, for example, work 20-30 hrs/week while paying zero federal income taxes to take home around $105K. compare that to NYC: you'd need about $160K to take home $105K (!!), plus your post tax costs aro going to be high as hell - rent, restaurants, and so forth. worse, you're probably pulling 45ish hrs a week for that. i imagine SF is similar or worse.

such a setup allows one to build wealth and live an extraordinary life. i'd highly recommend it if you can swing it.