It is entirely possible there will be a "hump" in orders though. There was no build-up to the Fire, so plenty of potentially interested consumers probably hadn't even heard of the Fire until a while after pre-orders started.
Given that the NYT and most major media outlets (including TV programs) covered the Fire the day it came out, you'd have to be living in a pretty deep hole (at least in the US) to have not heard about the release. Google News shows about 6,000 publications covering the release.
It seems unlikely they'll get even 10% of that much attention again before the ship date.
