I think you are on to something there actually. I have been thinking of this watch as a timepiece with sharp styling and a durability factor previously out of my range, but desireable in a dive watch. But if Seiko fails to backfill market vacancies like the SBDA, indeed that is a shame.That's a good point, and I know that my opinion of how much an added feature is worth is subjective. Personally, the Monster and Sumo seem like very different watches to me. The SBDC007 just doesn't seem to offer much more than the SBDA to me, and has in fact become a lot less distinctive and desirable in some ways. I have been disheartened by the release of the new Tunas too, I feel like Seiko is positioning itself out of my reach. At this rate I'll only be able to buy one Seiko a year before too long.