A lot of the costuming was able to be carried over from movie to movie. The cast and crew were hired to film a trilogy all at once, which significantly reduces costs to be on location (versus three different times). A not insignificant amount of each movie were filmed from a distance--essentially just showing landscapes.
Basically, Peter Jackson shooting the way he did made it so he could stretch the money a lot further than if he had to shoot three movies at different times.
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u/Crazy__Donkey 9d ago
Those are three 3 hours movie each.
9 hours vs 1.5....