AD / OD Cyliner of Destiny or just plain AD Authentication

What are the pro's and cons ? The reason I ask (and I thought I had posted earlier on this but it appears not) is that I work for a company which installs OSX systems. We are quite familiar with the cylinder of destiny and have installed it many times... Now a few months ago we visited a school outside of London and they seemed to want this setup. We did not hear from them again but yesterday I talked with them and they seem to have been pursuaded that a straight AD authentication to their AD home directory is the way to go... this is with music studio mac's so there is going to be a problem.... My Question is what are the main benefits of using the Cylinder of destiny with augemented records... I know it's great but how do I explain the BENEFITS to someone... especially when these are music studio macs... Obviously caching temp files locally is one benefit... Can any one give us some pointers ? Thanks.