Another data point, for what it's worth: I ordered from Detroit Modular and Perfect Circuit when the Hallowe'en sales were announced on the evening of Oct 27. Detroit Modular free shipping was via USPS, which arrived the morning of Oct 30. It is Nov 1, and the Perfect Circuit order (also free shipping, but FedEx) is crawling across the country, currently in Iowa.
I know that Postmaster General DeLay is trying to ruin USPS, but if we stop using it, he will win.