The problem of the quotidian Ian Curtis for those who devised some mythologised version from all that was available to us (ie the records) -- I was trying to get at this in my review of Control, below. Zadie Smith hits on the same thing this week in a New York Review of Books piece on Kafka. It's this, really:
"But this last Kafka is as difficult to keep in mind as the Pynchon who grocery-shops and attends baseball games, the Salinger who grew old and raised a family in Cornish, New Hampshire. Readers are incurable fabulists. Kafka's case, though, extends beyond literary mystique. He is more than a man of mystery—he's metaphysical. Readers who are particularly attached to this supra-Kafka find the introduction of a quotidian Kafka hard to swallow."