There's also the minor technicality that USCIS won't let you in the country with only a one way ticket.
Problems with US "immigration" for entrepreneurs are mostly overrated. In fact most of entreps dont need to immigrate until they "make it".
Been there. Done that.
If you really want - you can do that rather simply after making some research online. Not talking about getting citizenship or green card here(although its also quite double). Especially if you are from UK. So to me its a weak excuse, sorry.
PS: Proof - even YC accept foreign teams without any hassle.
Emphasis on Salford. There are places in UK that are viable for startups but Salford is just not one of them. The issue here is that I don't have enough money to move yet, so it's not entirely a weak excuse.
PS: I dont know why somebody downvoted this and dont really care about that. This was a case that changed lives for at least two friends of mine. I hope somebody might benefit from that. Its a question of like $500 for somebody in the UK. I fail to understand when ppl from well-developed countries complain for such small issues. Read what it takes from somebody from india china or pakistan to get to where you are right now and get how PRIVILEGED and blessed are you !