I think like people you know well, the characters do start to get on your nerves with over-exposure! I loved the Belgariad and Mallorean books, but the cliches did start to grate after a while - especially the 'that's another point for his side' game that's always played and gets very annoying! Even the ever-blessed Silk was winding me up with his nose-twitching by the end...just like real life, when I've spent too much time with my family, all the stuff I usually find endearing start to become irritating!