I do question if I would take $2 billion, because I'm not really in this for the money, so long as I have enough to survive. I actually passed up an opportunity for acquisition not that long ago (with another company) because I did not want the golden handcuffs, which would have been 3-5 more years of work I hate. Basically, I see this as almost my last chance to do something interesting with my life (its very tiring and I am getting "older"), I don't know if I could put a price on that. That said I'm not trying to act like I'm above money or something, I'd enjoy a billion dollars just as much as the next guy. :)
Oculus had the dev community rallied around them. They just had to create a platform and standards, sponsor the open metaverse and they'd be in a great position to make billions from portions of transactions / marketplaces / convenient ad services / etc, just like Google does with Android. Instead they sold to FB, who will no doubt pull an Apple. In an instant they destroyed the vision, and now we have to wait for the next Google to come along and prevent any one company from gaining too large a stranglehold in the mean time.