I agree that it made strategic business sense to grandfather in existing (i.e. pre-6/2010) owners at a modest price. Marriott gained by populating the DC trust with inventory.
What I didn't understand (even though I benefited from it) was the decision to later lower the price to enroll pre-2010 units. We enrolled our units about three years ago virtually for free (we had to sit through a sales presentation). Perhaps Marriott still needed inventory, but it seemed to me that they slighted the owners who paid $595/$1,995 to enroll units.
I find this discussion fascinating because we are sitting on a couple of prime units (WKORV-OF and WKV plat plus); what will Marriott do to incentivize me to enroll these high value units?
I think they lowered the price because it is more potential customers for point sales.
I do think you will find an attractive option to enroll your WKORV weeks because those are the type of weeks that Marriott expects will always be in high demand. Theoretically, WKORV is already accessible to me with StarOptions, but the reality is that high demand seasons are not. Marriott wants to structure the overlay in such a way that WKORV is always accessible with Marriott Points no matter the season. In the Marriott system, even the most highly demanded weeks have availability (right at inventory release) and the overlay needs to continue this for the most highly demanded Westin weeks (that are currently incredibly scarce 8 months out).
If Marriott simply offers an exchange ratio of [2,500] Marriott points for [81,000] StarOptions but leaves the reservation system/method intact, then it won't improve the reservations experience and people won't use it as much. I think the more successful approach would be to find a way to bring the Vistana week into the Marriott system and give each week a points value, meaning there will be winners and losers. You will be a winner in that system. I can't see you exchanging your WKORV week for [5,500] Marriott points, which would be the value if it was based on a fixed Marriott:StarOption conversion ratio like the 2,500/81,000 that I suggested above. However, if they treat WKORV like Maui Ocean Club, and you are receiving [7,500] Marriott Points for your week, then you may be willing to play in the Marriott system because there is alot you can do with 7,500 points. But that's too high a ratio to broadly apply to the other StarOptions weeks, which would overweight Vistana owners versus Marriott owners. We will see and it will be interesting.
Best,
Greg