Not every 360 has a hard drive.
Who says you need to use the extra discs? If you WANT the voices, get a hard drive. If you don't have a hard drive, play without the voices, ala Morrowind. I really don't see the problem, many games implement features that require the hard drive. (Halo 3's Forge, for example)
I hate when people think one console represents the entire group.
Good for you. :shrug: