I doubt very seriously you will find it for that price from an authorized dealer.
That's why you see it at $1,599 from all the authorized dealers at the Shack store... OneCall, 6ave, J&R Music and Computer World, Vanns, and Crutchfield.
You may get lucky and find a local Denon dealer in the States that will cut you a bit of a break, but generally it won't be much... Denon is just not fond of dealers cutting prices.
I can't personally tell you anything about the 3808, but I can show you about what the Audyssey EQ will do for you. I measured the effects from the 3806 about a 19 months ago and reported on it in this thread...
Denon 3806 and Audyssey EQ Measurements
It's my understanding that they are providing a better mic and have improved the MultQ in the 08's, but it faired very well previously, other than it cut my bass more than I wanted it to. It would make sense that it only got better with the newer models.