Oracle self-study CD-ROM

This isn't a certification question.

I was just wondering if anybody out there has ever used Oracle's self-study CD-ROM's? They are pricey for a CBT, but I like CBT's in general because I can skip over the stuff I already know. I already know 10g, so I was wanting to do the "11g new features" class. I'm just wavering on whether to have work pay for the class or do CBT. Anybody have any good/bad experiences with Oracles CBT? It's a hefty penny to pay if they aren't very good.

The beauty of CBT is that they are re-usable; if you have more than one DBA in your organization you can make them available for all of them so the cost per student goes down pretty quickly.