Im fairly new to the world of crypto and very new to Steemit but as far as I understand the amount of Steem introduced to the market is being doubled every year and used to reward primarily users with SBD and Steem Power. So in theory the price of a Steem should continuesly fall unless a growing demand makes up for the increase in supply. That doesnt make it the obvious long or short term investment perhaps compared to other cryptos with a different concept.
However, I do find the whole idea and project behind it very interesting and disruptive as it could be used for many purposes it proven sound for all involved.
I also heard that Steemit would pay out 10% on your Steem Dollars which is an alternative and long term way of using your funds through Steemit but not to sure how that works in real life yet.