Bumping this thread to freshen the conversation. As an owner in the Hyatt system, I can say with certainty that Hyatt resale prices have dropped considerably (I would estimate about 30% from the beginning of the year). I've also recently spoken to a well-known and trusted broker/agent who agrees with this statement.
Not only have prices dropped, but the number of listings has grown significantly. I'm guessing this is just the tip of the iceberg, as we will see a huge increase in listings beginning in the fall and particularly the 4th quarter as owners a) become frustrated with having to pay continuing MF's even though they have been largely shut out of using their units for a good part of the year; and b) 2021 MF statements will be coming due.
There's one more ticking time bomb, and that's the down-range much greater competition coming for 2021 and 2022 bookings, as many of us--perhaps most of us--are depositing unusable fixed weeks into the exchange companies. Getting those plum exchanges is going to be much tougher until the effects of COVID-19 fully unwind, which will be years from now.