You probably shouldn't, is the honest answer. You can't expect every single STEEM to stay at $3-4 forever.

That would be the equivalent of the marketcap of STEEM growing 100% year over year. Which means next year the market cap will be like 700M, then 1.4B, 2.8B, 5.6B, 11.2B, 22.4B, 44.8B, 89.6B, 179.2B, 358.4B in 10 years...

and in 20 years, STEEM's marketcap has to be 367 TRILLION DOLLARS to maintain the $3-4 dollars per steem. Laughable.

In actuality, holding steem power means you're LOSING 10% every year. Of course, if the market cap increases by more than 10%, you still end up with a net gain. But it doesn't compound like people make it seem.