Not really. There are enough rooms to go around, and just enough, if that makes sense.
Each resort has so many points associated with it. DVC cannot sell more that that number of points.
Look at it this way. Lets say there is a new resort with 10 rooms total. (a small resort 
) and the way the pricing on this resort works is each room is 1 point a night, no matter the season or day. There are 3,650 points available in that resort. Lets say 3 people buy into this resort for 365 points each. That represents 3 rooms "owned" for the entire year. Disney will allocate 3 rooms a day to the declared inventory and 7 per day to the undeclared. Now lets say it's a popular week. Two of the owners in this resort book, then a DVC member in another resort grabs the last delared room. Then you call. You are told sorry we are full, but there are still 7 rooms avaialble for cash rental. That is what is happening. As the resort sells out there will be less and less rooms in the undelared inventory. At full sale, with no ROFR points owned by Disney there will only be the 2-4% DVCMike mentioned left open for cash before the 60 day release point, unless owners start transfering points to cash equivalents or using points in other resorts.
This complicated mess is the (in my opinion, small) price you pay for the ability to have points that you use whenver you want (can) as opposed to having a set week as with other timeshares.
-dave
