The gas gets too high when people flock. It has died down a little today. I have a feeling dapps are going to use multiple metamask type plug ins, and most likely multiple cryptos for each game. Ethereum was the first of its kind and will always have some use. It does need to be cheaper tho, and I think it will get there. It will also get to its ATH, when just depends on some scaling and discussions. All the newer smart coins that want to destroy it, also pretty much owe their ERC20 ICO gotten market caps to ETH.