I always thought that as time has gone by, driver support for GNU/Linux (barring a few troublesome manufacturers like ATI, Lexmark, etc.) has been fairly good. What kind of drivers are you talking about that should be sold on CDs?
If you're talking about driver CDs like you have for motherboards, mice, etc then that's the manufacturer's headache. Generally every distro that is released has up-to-date drivers for the latest hardware (provided they're stable). What more are you looking for?
Although it may appear so, it is not so simple always. Acer is one manufacturer whose hardware is always troublesome on GNU/Linux. It might be Acer's fault that they ship non-standard H/W, but I feel the FOSS world needs to do something about this. I have seen 4 Acer systems, all laptops. One whose battery was not detected, one had trouble with its Wifi, one had trouble with both its CD-ROM and Wifi, and one has issues with the sound-card.
None of these are highly sophisticated H/W (imagine trouble with CD-ROM).
Cheers, Debarshi