Great question. And really it will depend on your budget. But at the end of the day we all should really be trying to build up our Steem Power. That's what gives us the most upvote power and the biggest earning potential. Plus, as more and more people hold on to their Steem (when it's powered up it's basically in a savings account) the value of Steem will rise. And that's good for all of us. :)