Doing the Selfish Time Warp

I got a very curious email from Amazon today:

Dear Amazon.co.uk Customer,

As someone who has purchased books by Richard Dawkins, you might like to know that "The Selfish Gene" will be released soon. You can pre-order your copy for just GBP 7.49 ( 50% off the RRP) by following the link below.

The Selfish Gene
by Richard Dawkins

Release Date:March 16, 2006

List Price: GBP 14.99 Our Price: GBP 7.49 You Save: GBP 7.50 (50%)

A URL was also included that pointed here.

I can't remember how long I've had my copy of TSG but the book itself was first published in 1976.

I guess it's supposed to be some sort of 30th anniversary edition or something but the wording of the email seems plain silly.