Excellent price for a very well-reviewed toy. Cheapest it's been on Amazon for a direct sale (i.e. stocked by Amazon themselves).
BTW, if it's not clear from the photo, this is a pretty big toy (56cm high) - I saw one set out in a local toyshop window and it's just the kind of thing I wish had been around when I was a kid!
Price on other sites is £85 to £95.