A good example of why nice error pages matter
blog.browsermob.com
blog.browsermob.com
I think it's hard to argue that there isn't some gain to be had with a proper error page - and implementation is just so darned simple.
It's quite astonishing that a large company like Borders would be unaware of this and fail to communicate it to their web staff.
Interaction times are CRUCIAL.
Provide a walk-through of your product on an example client showing how it can be useful.