Acrobat X Suite was always a strange bundle - Photoshop wasn't the natural choice of companion product. The arrival of Creative Cloud also changed things dramatically; customers who previously purchased Acrobat Suite to get hold of things like Media Encoder are far more likely to go with CC as it gives them instant access to Acrobat XI Pro as well as a number of other products (Flash, Bridge, Illustrator, InDesign) which weren't part of Acrobat Suite.
eLearning Suite 6 is a different offering, it's aimed at people whose primary job is the creation of courseware, mainly for deployment on learning management systems (Moodle, Connect Server, etc.). As such it contains two specialist products from outside the CC family, Presenter and Captivate. It's also available as a subscription, though it's separate from CC.
It was a natural choice for my needs - and in fact I suspect a lot of market research went into creating the bundle in the first place.
I agree eLearning Suite 6 is a different offering at a different audience – so it’s a bit disingenuous to suggest it as an alternative.