It is now at 925,000 and may hit 1 million before year end. See:
"New Al Lutz: AP Holders Nearing 1 Million, Captain EO to Return in Feb" http://www.disboards.com/showthread.php?t=2342227
One must wonder how many of these AP's are So Cal and how many are Regular and Premium? My family of four are part of this AP family. We hold regular APs and come every couple of months on average spending 2-5 days there each visit. We live 7 hours away, so we get a hotel room every time. We do not impact the parking situation at all, as our car doesn't move the entire trip. How many of the nearing amillion pass holders in a similar situation as us? I would think Nevada and Arizona residents would make up a sizable chunk.
I'm saddened to see so many complaints about DL relating to crowds. Crowds are WHY California Adventure is getting World of Color, Carsland, etc. AP holders tend to be loyalists who give honest opinions on what can be done to improve the parks. They may not spend as much per trip, but they probably spend more overall. DL knows APs are their bread and butter, for better or for worse. Would we prefer to see an empty park with severly cut entertainment offerings, hours and ride closures? Or a flourishing atmoshere that is begging for more?
The 1990's visitor flow models aren't accurate any longer. So figure out the new norm and work with it.