I have been buying and powering up Steem since I joined the platform last summer. I believe these prices are just the start, when SMT's launch later this year I think everything will change.
I have however diversified some of my income into other cryptocurrency projects I believe in like Bitshares & EOS. But I have been able to buy back all the Steem I have sold with profits I have made from doing the diversification.
I plan to keep accumulating more Steempower going forward ^_^