Agree, there isnt much upside to direct, unless you are buying 150 and olan on using sole of the points at 7 months as well.
Otherwise resale seems to make a lot more sense, since most will probably only use VDH points at VDH.
Let's see if DVC 2.0 restrictions are here to stay a la Riviera. Agree that many VDH will be west coast intended for west coast usage. That DOES help DVD reduce the delta between VDH and resale-VDH though as many will have sole intent for VDH usage.
OTOH - many west coasters do use Aulani - so direct sales can make sense for those wanting access to both.