I can only tell yo u what I do...I am putting all my SBD into SP....

You want to hold in case it goes up later, what if it goes down. SP has an immediate value..it instantly increase your voting power which will increase your return and also make those who follow you and whom you upvote more powerful.

Yes putting SBD and STEEM into SP is an investment...but if one feels strongly about this blockchain, which I do, it is not a difficult choice to make.