Fiber to the desktop sounds good in theory but is very expensive to deploy. The typical office user is fine (and will be) with gigabit speeds but get into architects etc. and it begins to make sense.
Cat5e is fine for 99% of users but as long as cable manufacturers and the TIA keep pushing the envelope the IT wienies keep drooling and the latest becomes a must have. Why do you think constant upgrades are such an easy sell to this crowd? And as long as copper is a player it gets the thumbs up because that's all they are familiar with.
If the TIA said enough of the insanity, Cat7 will be the EOL for copper you can bet on how fast fiber gets deployed and the costs involved come down to copper levels.
-Hal
