You can tell the holiday season is approaching when games sneak onto shelves early rather than late ...
There are a lot of games coming out next week. In fact, over TWENTY in the past two weeks. Sometimes, you need to be a little more aggressive to make sure your games gets seen, and not the competitor. After all, there's nothing better than someone walking into a store intent on getting another game, and walks out with YOURS.
This is likely the reason that if you wait until next week for your copy of Tony Hawk Pro Skater 4, you're probably not going to find it. Activision shipped the title a week early, and it's on shelves RIGHT NOW.
EB and GameStop stores on the west coast have it for sure, with other stores likely to be receiving it tomorrow. Stores like Target and Best Buy tend to hang on for another day or two, so it may be Monday before you can get the title from those outlets.
You'd best hurry, as the game is probably going to be selling through quite strongly.