I was jettisoning content from my NAS like crazy and removing all of the local copies of movies I own streaming licenses for. While I was doing that, I discovered that Vudu had a bunch of them on sale for $7-10 each. It took a lot of self-restraint not to buy them. I'm trying to get rid of as much local media as I can over time, but I'm also trying to live on a budget, so...
Blu-Ray and UHD Blu-Ray are superior to their streaming equivalents and many condescending enthusiasts on other sites love to opine that philistines like me simply don't understand the importance of quality. The truth is that streaming has gotten so good, that I almost don't care about the difference and am willing to sacrifice it for reasons of both cost and convenience (though the former is less true as I transition to 4K).
While it is true that the average bitrate of a Vudu HDX movie is somewhere around 10 Mbps, they use a variable bitrate scheme that caps out at around 20 Mbps for those that have sufficient bandwidth. That minimizes banding and other artifacts to the point where I rarely notice the difference. Given that a lot of the UHD content now supports Atmos, the case for discs is even less compelling to me. The only real complaint I have about streaming is that it is inherently subject to network issues, but that is normally not an issue.