DVC is an investment whether one wants to admit it or not. There IS a financial component, if not, why even question the value, just pay whatever Disney is charging (what some seem to do anyway it seems). IMO there is a value and enjoyment standpoint but there is the financial component. Unless the purchase makes sense financially, it's foolish to buy in. Why pay the same or more than you could get with cash and have more options, safety and control? I couldn't disagree more on the efficient of the resale market, DVC is better than most but certainly not efficient. I don't disagree that buying a "lessor" resort contract (size or home resort) has the potential for a higher return as a % of a current retail purchase, however, it has a much lower return globally compared to paying less for SSR or similar and leaving the rest in a true investment. The difference is truly sunk costs unless one plans to sell later and any RTU difference and benefit comes at the end, starting at 2054 for SSR. The additional years add minimal to very modest additional value all else being equal that far out, it's a large % as the RTU grows closer as in the 2042 resorts.
Whether the additional cost is worth it depends on many factors including personal preference. Since we can't measure that and don't want to delve into any given individual's specific finances, all we really can do is talk about principles. For some the additional costs for VGF, or the Poly coming up, will be worth it because they will get the additional potential value. The difference in purchase between SSR & VGF 200 points is currently about $18K up front, almost $40K at 10 years (ignoring the additional dues which are almost certain to increase to more than $1 pp over SSR within 5 years) and almost $400K over the life of the SSR contract.
As I've said before, I don't feel it is a reasonable choice to purposefully wait on buying VGF anticipating cost savings. While I believe there will be some, I do not feel they will be enough to justify the loss of usage and other related factors. That said, someone looking to buy in 5 years at say $120 resale vs $180 retail will be faced with a significantly different choice and the reasonableness of their decisions will be different then compared today in all likelihood.
There is a financial component and value in everything you buy, but everything you buy is not an investment from the traditional sense of the word. I think comparing some resorts to others, many times is a false comparison. Some are system buys and some are resort buys. Right now you can't even get a studio at the 7 month mark for a week in January at VGF if you don't own there. I haven't checked but I could probably get in SSR tomorrow? It is just a different product. I agree you should buy where you want to stay. I could easily bid on priceline and get 4 star hotels in the Disney area for $80 a night and financially calculate my savings over 10 years and make a comparison. But it would be a false comparison. Yes, there are more similarities between DVC resorts, but there are many differences; and those physical and systematic differences matter and have value to many.