It might be a longer wait to buy a Nexus 10 outside the Play Store than we thought

The device will be available for pre-sale at all Staples stores, and on the company's website. It is expected to ship between Dec. 23 and 30, and will take 2-3 business days for delivery, Staples said.

http://www.pcmag.com/article2/0,2817,2412236,00.asp

Granted, this is just Staples, no real indicator if other B&M retailers are operating at the same timeline, but I'm guessing this will hold true, especially when Google is looking at 3 weeks for fresh Play Store stock as well.