So in Genesis 24 we have the narrator's description of the task that Abraham gives his oldest servant, namely, finding a wife for Isaac from Abraham's own country and family. This story is 66 verses long and basically consists of the entire chapter. However, smack dab in the middle of the story, beginning at 24:34, is Abraham's servant's recounting of the whole story up until that point, which itself is 14 verses long (ending around 24:48).
Now, from what I understand, Biblical authors, especially those of the Old Testament, were somewhat limited by scroll length. So my question is, why is this story repeated twice in the text? I mean, I just read this, is this where ancient audiences sometimes fell asleep and the story had to be resumed? It just sticks out to me, especially when we have maddeningly few details about certain things such as the giants mentioned in Gen. 6 or Melchizedek in Gen. 18? If we can ascribe significance to the lack of details about these things, can we not also interpret a certain level of significance due to the repetition of such a drawn out and relatively... simple story (when compared to the bombastic nature of say, the Exodus or God's destruction of Sodom and Gomorrah, or even the mystery and wonder of creation week itself)? The author(s) could have easily just wrote "and the servant told him all that had happened" in half a verse but they chose to completely reiterate it.
Is this sort of summary in the middle of a story common in ancient near-eastern story-telling? Is there a reason for this? Does this happen elsewhere in the Bible? And finally, what should I understand about the deeper significance of this story, given I'm basically reading it twice back to back?