My advice, FWIW, is to really think hard about what others here are saying as well - don't move just now. Do your investors have a really good reason for you to go there that is provably critical to the success of your startup? Many of these people just want to keep their investment where they can see it. As someone who has moved countries frequently (now on my 8th) I can tell you that it is massive investment in terms of time and money, both of which you are probably better off putting in your business. The USA and SV aren't going anywhere, they will still be here in another year or so (at least, i'd like to think so) when you are past the helter-skelter startup days, and will be in a position to create some more breathing room. In the meantime, nothing stopping you from popping over when it is absolutely required.