in general, few care that a car has a V-8 engine, most everyone likes to go fast.
few care that the walls have an R-36 insulation factor, most everyone cares that the home will be comfortable and bills will be low.
few care about the details, most everyone likes to enjoy the
benefits of the details.
In other words, light on details, big on direct
benefits to the user (whoever they may be).
"If we talk about Library Server, DLNA, WebRemote, WebPlay, will that tickle the customer?" probably not.
If you talk about being able to enjoy all of your music, movies and photos, anywhere in the house (or out of it), with a remote control, or an iPhone, they might feel the tickle.
The real hard part is "to give a good answer without knowing a little more about the customer." You got that right!!
benefits sell things, not details; you just have to figure out their needs, then explain the benefits of MC
I think a series of short clips showing the cool stuff it can do would be very beneficial.
(and don't overlook the power of a pretty model, or a sexy voice)
Finally, what I think the person quoted above is trying to say is that WMC works pretty well out of the box, and MOST people prefer that.
MC's learning curve makes even the Tibetan's scared of the climb