Almost doesn't justify the expense for me. I watching the movie for the characters and story not the details of the pixels.
This does not render different formats "invalid" way of watching a film. You watch films the way you want and I will watch them the way I want. IDIC and all that.
The very first VHS tape I ever owned was
Star Trek V. I wore the film out watching it over and over on my 13" color TV. I have seen it on VHS, on DVD, and on Blu-ray, and not once have I regretted seeing it on VHS. Yes, the quality is inferior to Blu-ray, the little 13" TV doesn't hold a candle to a 40" LED HDTV, but it does not change the positive memories, and not once did I think to myself "this wasn't the way filmmakers intended for it to be seen!"
Hell, I'll watch it right now on VHS just to get that old feel of seeing it for the first time again. Doesn't bother me.
The fact is not everyone can afford a 4K TV, nor the media that plays best on it. Even during the days when DVDs were at their height, I owned a great many VHS tapes, and watched them on my (at the time) 19" standard definition TV. The cost of DVDs, and HDTVs were insanely high, and far beyond my reach. I swapped VHS tapes with friends, and that's how I saw movies I couldn't afford to see in theaters.
All of that aside, some people like to watch movies on their tablets, or on their phones. Some
must have it on a 70" UHD TV in 8K with 7.1 channel surround, and then there are the people who watch it on their computers because it's easier for them to access. None of these is an invalid way to watch your favorite movies and TV shows. What fits you best is what works best. All of this talk of "how the filmmakers intended" is silly, because not everyone can go see it in the theater and then carry the theater home with them.