Is the feeling wrong, that all the ~6k units (e.g. DMP, DS, Octave) have quite different technical and conceptual effort put in and their relevance to the system is also quite different? Is the equal price point more related to a marketing strategy?
In my perception of effort/price the DS would rank on top, then Octave also due to SW effort, then DMP. Regarding overall sound influence to the setup I would even see the DS far ahead of the others.
But for sure the value is in the demand of the customer and the competitiveness of the product compared to others…