I'm all for neat installations...But in a location where you need to make changes often, having everything zip-tied down neatly can actually be a hinderance when a change is required.
Our rooms don't look anywhere near as bad as that third picture, but they don't look as neat as the first, either. The upside is that we can make changes and route new cables quickly without having to cut 500 zip-ties, route the cable, then put in 500 new ones.
I have a motto... As long as both ends of teh run are labelled, the run is done safely, and doesn't look like outright spaghetti, it's okay.
-Z (not an electrician, but loves reading this forum anyway)
