Head to your LBS, tell them what you're looking for and ask if they or their distributors have any New Old Stock bikes available at a discount.

I've been very lucky this way. I've been able to get new bikes that were from older model years. One bike I purchased in 2007, was a 2003 model that had never been out of the box. The other I bought this year but was a 2007 model. Both came at a considerable discount.

I have two things going for me in this regard: (1) my frame size is between 60-62 depending on the frame -- but it's usually the largest frame size for a given bike. This size seems to have less demand than others, so it's more likley to be sitting around and (2) I'm not that picky. I take the bike that is available and then make whatever changes or additions are needed. Because of the discount, I've had enough left over to swap out parts or make improvements as needed.

Anyway, it's worth a shot, no?