Even from YC, the average exit is only $2M. From other accelerators, the total of all exists is well below what most founders want for their own exit.
This might explain why companies are so quick to jump on $10M aquihire deals.
Conclusion? If you want financial gain from a startup, go for sustainable revenue and building a real profitable business. Or get into YC and be one of their more successful bets.
Granted, there may be a lot more exits in the future from some of these accelerators, but it's doubtful that will change the averages by any order of magnitude.
Perhaps we should ask ourselves, why do these investors stick around?