If you didnt/don't care when you get your iPad, why not just order online like the thousands of other sane, non-whiney smart people? Not only does it guarantee you an iPad, it completely eliminates the "place in line" drama!
Because I have to get one for my parents within the next few weeks? Long story...
you really think it's cost effective for apple to figure out the exact product mix of ipads to each store and package and ship them out accordingly?
Yes, actually. This is exactly what every company does in the industry. Usually if you do a pre-order this becomes pretty easy.
This is also what Apple's done for every launch prior.