StormSignal posted... i'm def down to watch but, what about them really needed to be remastered in the first place?
Color grading for Fellowship 4K is more vivid and fully balanced out which needed it the most out of the three because of its diverse organic setpieces(Shire, various countrysides, Rivendell, etc), plus its age in comparison to the other two. The original extended DVD were muddier and soft looking while the "remastered" extended bluray had a godawful blue filter that fucked up the tone and natural quality of every scene.
The color grade and contrast changes in the sequels are also recorrected along with the blue filter removal but not as significant looking as Fellowship because of the higher number of dark setpieces. Personally it may be subjective depending on which movie is your favorite you'll end up analyzing frame by frame over but the first movie is the technical highlight.
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Anyway, pass. I'm good watching the UHD versions at home on my own time.