Yes, there is a difference between the UK and US version. It should be, because I saw I was buying the US version. Don't know what the difference is between those two, it should be the grammer, in stead of the gameplay.
But first of all, I buy this partly because of a collectors item, and for the other part to get quick info about it. I am aware that the info can be incorrect, because it is probably based on game info that has changed over the months, during updates or so. Just like with the first Prima Guide where I've read that when an artist dies his or her paintings will be worth twice as much. Maybe this worked in the first version of The Sims 3, but as I've read somewhere on the site here, I it doesn't with the latest update.
Maybe it could be something for the guide Carl, to mention the info that is written in the Prima Guide which is incorrect compared to the game it is corresponding to. I really think this can help people out. It should be possible, even without debunking the Prima Guide. I said that last thing because maybe you could get problems with it otherwise.
Bol.com will be pretty cheap for me though, because the travel time for whatever auto transport they will use is shorter than when I will buy it from Amazone.de. That company should lie somewhere in Germany, according to the 'de' ending of the site. And although Germany is my southern neighbour and is therefore the nearest country compared to other foreign countrys, a building from the Bol.com company lies in Holland, which makes travel time shorter, and therfore cheaper.