If DarkSend is out, very soon will also come out some clonecoin with aggressive marketing. Therefore at that time Darkcoin must be widely known among cryptocoin public so we definitely need some marketing.
However at this point all what's DRK standing on is promise of DarkSend. Therefore many speculators are holding or buying. However DarkSend is still in the very early stage of development and there is still a chance that there is some undiscovered fundamental flaw in design that cannot be easily fixed.
You forgot the major point that Darkcoin without Darksend is a Quarkcoin clone without the instamine. So has a lot going for it as a CPU-minable-friendly coin as well as Darksend. Yes GPU's are a lot more efficient, but not by as bigger factor as Scrypt is. Whether this helps attract more low level miners to boost the economy or whether it just helps to attract botnets more to pump-and-dump we can only wait and see.
Actually, with 5 or 6 more algorithms than Quark, it is arguably more resistant to asics.