Locking up an investment for two years is a huge risk and should only be considered if you're willing to lose that investment. Many things could happen which would render the SP worthless.
The only value I see right now in storing a lot in storing SP is to have influence over the content that becomes popular on the platform, and more importantly to earn money from voting for your own stuff.
When people see a whale voting on his own posts/comments they jump in expecting other votes. Hence you make money.
If you want to go all in for a chance to become extremely wealthy like one of the early bitcoin pioneers, however, It is indeed worth considering holding SP, and good luck to you :)
Yeah, 2 years is a long time! Especially in something that can move as quickly as Steemit. Hopefully it can sustain itself
Whale or no whale, everyone should always upvote their post. If you write sometihng I think it's fair to say that you approve of it and therefore find it worthy of an upvote.
I agree! Buying Steem and powering up is a risky investment. But half of what you get for posting you get in Steem Power, so you might as well hold that. :)