IIRC... The F10 M5 did not come out of dealers allocations when first introduced. However, shortly after that, they did.
If they are not out of the dealer allocation there will be some great deals and I will grab one and take delivery the first day too.
On the first day the M5 was available for ED pick up, 24 were picked up;
http://f10.m5post.com/forums/showthread.php?t=739733