Lance says that he doesn't think 4K streaming will ever take over 4K Blu-ray discs. Scott says that the median downstream bandwidth in the US is far less than what 4K requires, and even if it did, with data caps, your streaming would be terribly limited every month. Leo agrees and says that he's seen 4K streaming and it's nowhere near as good as a Blu-ray experience. Scott says it's because the streams are compressed and that is part of the problem.
We haven't gotten 4K Blu-rays just yet, although the specs for Ultra HD Blu-ray have been finalized. We should get players and discs by the end of the year. Leo says, however, that studios like streaming because it's very difficult to pirate, whereas, it's very easy to crack the optical mediums. Scott also thinks that the TV manufacturers jumped the gun on TVs, way before there were content technologies like Blu-ray players ready to support it. And Leo says that movie companies really don't have an incentive to support optical media anymore. Unless ISPs drop bandwidth caps, or decide to start enforcing them, optical media really is the only solution for enjoying 4K.