Listings are absolutely not down by nearly 50% across the Board. By my count, we peaked at a total of approx 2300 listings in Feb and we still sit just below 1900 total listings today. That's less than a 20% drop and still more than 20% higher than 18 months ago. Perhaps the Board sponsor listings have decreased by a greater percentage, but there is still a lot of supply in the resale market.
I agree that sellers have stiffened a bit and some of the low prices seen in Feb/March are reported less frequently. However, I think we will now settle into a new normal where sellers will have to decide if they want to leave their contracts on the market long-term to get the prices they want or start to budge a bit on pricing.
I think some of the recent rental price decreases do not bode well for the market. If both rental pricing and Disney room pricing starts to soften, more sellers will be squeezed into a corner. I think there is a general underestimation of the support that the rental market provides to value and pricing - people don't need to have bought thousands of points with the intention of renting for this to be critical. If someone has an off year or two financially and just needs to cover their loan and annual due costs, they are in a pretty safe position now to rent with little issue (both from a timing and amount perspective). If that softens, there will be more distressed sellers with fewer options that could depress resale pricing again in the future.