I'm new here so please bear with me if I don't have a firm handle on the local jargon. I am assuming HotDQ/RoT is considered to be an "adventure path" (AP). I am also assuming that an AP is (most simply) defined as a self-contained campaign driven by a single high-level plot arc. The implication of the AP format is the PCs will be limited to certain locations. The AP itself should contain all the relevant info about those locations the DM needs to run the encounters that constitute the plot and subplots. In that case, is there any need for a setting guide?
The obvious answer is, yes because some people do not want to play a particular plot-arc. But even should the customer have no plans to run the AP encounters, all the setting information an AP contains is still useful as the backdrop for homemade campaigns. A setting guide is certainly a more efficient product for this kind of customer but from the publisher's point of view, efficiency as to any one market segment must be weighed against efficiency to all others.
To hypothetically apply this idea, would you (as a customer, DM or PC or both) prefer a Ravenloft AP or a Ravenloft setting guide?
The obvious answer is, yes because some people do not want to play a particular plot-arc. But even should the customer have no plans to run the AP encounters, all the setting information an AP contains is still useful as the backdrop for homemade campaigns. A setting guide is certainly a more efficient product for this kind of customer but from the publisher's point of view, efficiency as to any one market segment must be weighed against efficiency to all others.
To hypothetically apply this idea, would you (as a customer, DM or PC or both) prefer a Ravenloft AP or a Ravenloft setting guide?