Not only does it strengthen your friendship, but it takes the profit margin of a moving company out of the equation - that's the economic gain your group gains (even after you buy your friends beer and lunches - you should still be in the plus)
The vast majority of people I talk to piling out west have no connections here whatsoever.
I could move to rural Texas and live like ... well, better, maybe ... but there's no opportunity there, I'd make about a quarter of what I do now, if I could even find a job I wasn't overqualified for and not know anyone.
If I moved to the West Coast, I could up my pay, maybe, but that's about it. I'd still not know anyone.
All that stuff plays a part the older you get.
But for anyone who has looked into it, you learn the visa situation is a nuisance. They don't want foreigners longer than a vacation.