It is all about vision. What is their vision of the future?

1) Make a cool buck, and chill out in Costa Rica.

2) Make cool companies forever.

3) Make Snapchat HUGE and somehow remake the world with it or something else.

4) Asteroid mining.

If (1) is good enough, and guaranteed, then all options are still on the table.

Only if (4) scale projects are the goal should they sell now. If any other vision is really what they have in mind, they are set.

I personally would aim for (4) or (5) :-)