I don't have access to the
DVC member site, yet, but someone posted that VGC had random availability show up yesterday for the end of July and a lot of availability in August. (They posted a screenshot of the calendar.) If this is the case within 7 months, then I don't see why those living nearby would want to pay full price for a VGC contract when they can use SAP. (I never knew SAPs was a thing until DIS boards!)
When we go to socal, it's usually for the weekend or a few random days. We don't spend a week of our vacation time there. I'm going through ROFR for a 75 pt VGC contract, but I don't think we'd need much more than that. We are more interested to see what the pricing for DLT will be once it starts selling.
And from what I've seen so far, a couple of the reasons a lot (not all) of the east coasters don't seem too interested in VGC because it's too far (same reason why I don't have interest in purchasing a contract on the east coast) and expensive. They have a lot of other Disney properties closer to them for less that is easier to visit.