I'm seeing the same thing in terms of renter inquiries. They have ceased. I've also seen the prices on Ebay drop.
I have to wonder how the developers will weather this. And, I have to wonder how long it will last. If we do the bailout AKA "rescue", it's going to lead to higher inflation. This, in turn, will cause maintenance fees to go up, the dollar to go down. High maintenance fees lead to more sales, more defaults, and... higher maintenance fees for the hoa. A devalued dollar, increases the fees in other countries dramatically, but where you'd normally see an increase in property value, the depressed world economy would offset this.
Yes, you may be able to pick up some great values on weeks, but will they be worth it? If maintenance fees go up 15-30% (which is conceivable) value goes down. For most resorts and resort areas, it's safe to say, there's a correlation between the value of a timeshare week and the maintenance fees. As maintenance fees go up, value goes down (and there are some exceptions.)
One of the values in owning a timeshare is the low cost investment in annual vacations. That maintenance fee typically beats market price by 50-100%. So, if your maintenance fees are $700, you'll typically see these weeks offered for $1050-$1400. When those prices go down significantly, so does the perceived value of your ownership. When prices on the outside (even At the resort) can compete with maintenance fees, you own junk.
My point is... there's the potential for a vicious spiral here. Fees have to go up, rentals will go down, values will go down. When fees equal rentals, people default, and fees go up again.