Not exactly the most in depth financial analysis, but that's ok. So why should Apple care if they sell the ipad for $600 this week, or $600 in 3 weeks?
How do we know the EU delay isn't tied into to a pending price drop on RAM or flash memory from suppliers in the next 2 weeks? Or forecasted lower shipping costs? Even subtle fuel cost fluctuations could influence a ship date.
Only Steve & Co know for sure, but it's safe to say there are many factors involved in getting a product manufactured in massive quantities and shipped globally. Saving $1 per unit on a 5 million unit push is not chump change.