TOC? Alive and kickin'
I write technical books and manuals with an average of 300+ pages, and there I absolutely need the TOC, both entire-doc-based using specific styles and levels, as well as subparts-based using bookmarks.
I also had to write a macro that modified the TOC entries so that I can have BIG, 24pt chapter numbers along with regular 12pt TOC descriptions, restoring a behaviour in O2K that has unfortunately disappeared in OXP and O2K3.
For me - and for the readers of my manuals - long live the TOC (but not the bugs).