From what I have seen so far, I think that a viable steem economy could come out of @steemmonsters from the buying and selling of cards. I also hope to see more mmo / rpg type games being introduced on the steem blockchain. While I'm not a big fan of bringing advertising to steemit, initiatives like @steemhunters could be good for the price of steem if product producers start actively trying to get discovered and promoted by such endeavors.