Ethan Banks of The Peering Introvert comments:
The topic came up recently that a segment of user workstations on a network I manage were only serviced by 100Mbps ports, and not gigabit. None of us especially had a problem with that, as 100Mbps is an awful lot of bandwidth for the typical desktop user.
Ethan takes an interesting position here. Rather than clamoring for more bandwidth all the time, users should see where their data is going to determine what needs to be upgraded. Faster WAN circuits? Yes, definitely. 10Gig to the desktop? Probably not.