I hope bitcoin will have some other great parties that start accepting it. It's very good for bitcoin's marketing and since there is no active marketing team, bitcoin needs the help of every marketing. Steam being a major party is what we need.
Surely with that we can see more online business shops accepting bitcoin since bitcoin market is wider globally and maybe some of them are looking unto bitcoins now and make some marketing studies that it will profitable and convenient for them if the adopt it, and surely future will be great and next year there will be another online shop adoption will be happen and many people use bitcoins in future.