We're considering buying direct, but for some very specific reasons.
- We're going to try to get into VGC for our 5th anniversary in September, and having the points immediately available would be advantageous. There's no guarantee a resale would close in time, and many of the ones we're looking at have stripped points anyway.
- The interest rate is comparable to what we're finding elsewhere, and since we're already members in good standing, it's an automatic approval. Other lenders we've looked at with automatic approval have higher rates than what Disney quoted me.
- Having Disney handle all the details rather than dealing with a resale broker, another owner, another finance company, etc. is not a minor benefit to us.
- There's no chance we could spend a month working on a resale, getting our hopes up, and having Disney ROFR it.
Also, I'm not sure where you're getting "2x the price" from. We're seeing Disney's prices for the properties we're looking at are maybe 33-50% higher. And the interest rate we were quoted was WAY lower than 16%.
For the record, normally we wouldn't advocate financing this at all. (It really eats into the time it takes to break even.) We're using the financing more as a bridge loan. We can buy now, pay a sizable down payment, and then pay down the rest if/when we resell our current contract.