it's hard to say whether or not other timeshare systems are seeing an increase in available resales, because the market for them is much more decentralized and opaque. But, even if this is a Disney-specific thing, there are reasons for it both good and bad.
As noted, the Parks product is different, and the price points are not helping. However, I suspect that has less to do with this than many think. A good number of DVC owners are not going to blink at the changes in price point. it's just money, and relatively little for most people who would be comfortable dropping low-to-mid five figures on a luxury discretionary purchase. And, that might be true of many Disney vacationers in general: the biggest surprise for management about the new pay-to-play system was how the large number that were willing to pay.
The parks are slammed, the resorts are full. It is true that there is a breaking point, but this idea that "finally they've gone too far" comes up every time Disney increases the prices for something. Disney has been in the business of setting prices for their product for decades, they are fanatical about measuring guest sentiment, and they probably know more about what their guests will accept than Joe the armchair CEO. That doesn't mean they can't be wrong, but my money is on the Mouse.
I do think the economic headwinds have something to do with it, but not in the way that some of you might. Prices have
soared in
the secondary marketplace over the past year. That's likely not going to continue for very much longer, and I suspect there are a good number of owners testing the market with "buy me out, I dare you" prices, thinking they are near a short-term top. If they get it (or close to it) fine, they'll sell. If not, no worries, they will keep it and just move on.