If you read the "Number of people walking" thread under DVC mousellaneous; you will see that the first week of December (at some AKV) had no availability on days in the 11 mos + 7 day time period that should have been available because there was an available day earlier in that week (in other words, if today is dec. 5 and Dec. 5,6,7 are Unavailable, but Dec. 8 IS available, why aren't Dec. 9,10 also available?)(that's an example, not current situation). Either there is/was a glitch in the system or member services is pulling days before they are available to DVC members.
And yes, walking/stalking/waitlisting are sometimes the only way to get what you want.....