I understand where you're coming from with the resorts no longer actively marketed and Aulani that's been for sale several years now but if looking at direct purchase during the initial offerings for every resort including Aulani, the direct purchase comes out ahead of resale every time-even during economic downturns.
Examples of direct sales pricing. This doesn't take into account any purchase incentives, which most resorts offered except GFV.
2007: AKV and ssr @ $104
2009: vgc @ $112
2009: BLt at $120
2010: Aulani @ 114
2013: VGF @ 145
2015: pvb @$165 (I'm pretty sure it was initially offered at a nice discount for current members)
So to take the worst seller, Aulani and analyze because the other resorts are a much better scenario: Had you purchased Aulani initially at $114 in 2010 you'd have at least 7 years use of points so far. Currently the subsidized mf's are $5.28. Had you purchased the worst value dvc, Aulani when it was first offered, and resell it today you will still get almost all of initial investment back and will have used those points for the past 7 years. All the other resorts have a much better outcome. I remember reading a ton about the outrageous $145 pp for GFV and that people would just wait a few years and pick up for a fraction of the cost resale. Yes you can pick up a resale contract gfv for less than $145, not much less though but the person who purchased direct in 2013 has been using the points for 5 years now and has direct benefits. They fared better than the resale purchaser.
The resorts now selling resale like AKV at about $85 are a much better deal than direct at $165 but had you initially purchased at $104 back in 2007 it was a much better deal than resale now.