6. Many people like Eidorian are at home with their wallet and credit cards in hand
7. The online store will take orders for a newly announced product
8. Retail locations are open
9. Many people who may be waiting to see what a Mac Pro offers may realize, upon it's release, that it isn't for them and decide to go to a retail store to buy any of the other Macs.
The more I think about all this, the more I feel like a Mac Pro release is imminent AND will be accompanied by a quiet speed bump for both iMacs.
The iMacs have been out for just under 6 months. They're due.