Of course, there's an unspoken assumption here that everything a company has developed by launch date, they should give you on the disc. It sounds nice, but is there any real basis to this belief? Perhaps its the prerogative of the manufacturer to decide just what the final retail product is, even if it's less than what they could do.
It is certainly the publisher's decision as to what content goes on the disc, and which is held back for the chance to charge an extra fee. By the same token, though, it's our perogative as consumers to reject that model and feel ripped off when they decide a certain way!
Seriously though, the whole Warden's Keep thing is the only reason I haven't purchased Dragon Age, and likely won't until it hits $20. Even then, I'm tempted to simply pirate the DLC,* as that's the only way to get a friggin'
storage chest!
*I'm not actually going to pirate it.