It would be good if the bitcoin can be used as a currency in some games. And people can earn that in games.
let's wait for more scaling first. if some of the big online games started using bitcoin the whole network would seize up even if they were using payments channels. at some point the coins have to come out of the game and on to the blockchain.
certain games probably have 5-10 times more than the total of current bitcoin users.
That is the reason we need big block size of at least 2MB in the short term, and it should be increased according to usage.