Just spoke with AMT and they are busy trying to get their orders out.  It takes time to test each board and ensure it passes with flying colors.  Testing time is what delays the orders and they need to confirm the equipment is shipped out functional.

For those who would like to build their own units, next time when you place an order, in the comments/shipping field, post a comment that you would like to have the unit come in pieces so that you can assemble it.  It may be quicker to receive it that way.