1. It costs little or nothing.
2. There are no advertisements.
3. You get to decide what to watch, rather than "what's on" at any given time.
People fail to appreciate what an invention Broad-casting was - and is - but its era may be rapidly drawing to a close.
Radio is dying, as young people stream music through their smart phones. They can either select music, or have an algorithm select music for them (such as Pandora). No longer are we all listening to the same "station" or channel anymore.
There may be some reasons for this. Sports and current events are hard to stream online right now. If you want to watch the ball drop on New Year's eve, you have to tune to network television (you aren't missing anything, of course, by not seeing this). But many die-hard fans want to watch their sports teams, and at least for the time being, streaming sports videos is not widely done (that I am aware of).
And it will be interesting to see how this affects streaming and the cash-flow of this lucrative business. Teams may be able to stream their games directly to fans, for a fee, or through a paid advertisement media. It could spell a breakup for the stranglehold the networks currently have on sports.
But long-term, I think we'll see broad-casting wither away and streaming come on stronger and stronger. What is funny to me, is that it seems like 2015 is the first year a lot of people are just starting to figure this out.