It is rare for an author to devote thirty pages of description to a character's choice of clothing or foods, unless those choices provide great insight into a character or are being used as a metaphor for the human condition.
There is a fine line between having good, rich Worldbuilding and rambling on about pointless details-conservation of detail is all about filtering out irrelevant information to highlight the actual plot points or interesting aspects of the setting or character. Shame on us if we later expect the viewer to be surprised by the importance of the detail we let slip. Oh, sure, we can set up a Red Herring or two, but we had better expect the viewer to attach importance to any detail focused on in the plot. If we give a detail, it'd better be important to the plot.
