Correct. I confirmed this with Jim in resales as well.
Those platinum Mountainside weeks are very tempting. I would buy one if they could enroll in the DC points program without the additional purchase of 2500 points.
I have a feeling the 12k platinum MS week is an EOY, since the price is about half the price of the other platinum MS on the list. If I am correct about that, the pricing on the MS platinum weeks(24.9k) is more than 10k higher than current resale prices.