The best one is what you think it is. In this moment i don't think anybody knows. If he say he knows... he is bs :-).
If you have them from nothing... you can risk the thing to let them there for a while.
Or even buy some if you feel it will raise up to $400 again... and get some winning...
These days, everything is uncertain until the miners react and then the people...
Who knows.
I dont't have much, but i will let them there for now to see what happens.