This actually sounds like it will be a lot of fun since not only will I be able to play with my friends even if they don't have the game but i'll be able to try out a game a friend has that you don't without purchasing it. This is of course in the event you don't live close to the person but still play games online together.
Build a htpc far easier no fiddling with transforming or certain file types not working or terrible software. I held off buying a PS4 Based on no dlna but alas I was so wrong a home built htpc is 1000x better for movies.