RE: STEEM PRICE & DEC in a free Fall?!
I wouldn't worry too much - as long as there is demand for these tokens and they're using the STEEM blockchain, all is well. Like any market, it goes up and down, it's certainly not free fall. People can make any token or coin they want for in-game currency or whatever, but as long as it's using the steem blockchain, it's all good. It actually increases demand for Steem as people will exchange it for other tokens rather than flooding the external market.
If games go belly-up that's bad news. But if in-game currencies go down (like DEC), that's an opportunity to buy them up for CHEAP! The ability to buy and sell cards using DEC is a good thing, it just encourages more players, more demand for DEC - it's creating a sub-economy on the steem blockchain. This is good news for STEEM in the long-run.
What's good for the chain, is good for the coin, even if you don't use the coin.
(I think the consensus is that the chain is actually BETTER than the coin right now)