I'm not sure why, but I was able to get it on the Amazon UK site recently for £0.01

Although I'm from Ireland, I still enjoyed it immensely and thought it was a great read. If he ever decides to update it, hopefully he'll include Belvoir Park, a Colt design (his one glaring omission) and maybe lay-off a bit on the guest house/menu descriptions.
I'm looking forward to reading his others on Scotland, England and Wales.