I got it for $49.99 and I believe around $7 for shipping. A little pricey? Yes. Worth it? Absolutely.
I really don't care whether the Viper doesn't handle well or not. I have seen videos of people driving it and it does get a little "tail happy." It has been one of my favorites cars to drive through the series. Plus it looks nice and mean.
Unless by some miracle our Japan versions get updated and localized with all content specific to our home regions, I'll be sure to get Prologue US when it arrives, day one.
Since I hear the news for the week or so, I am not completing the S challenges. They are too hard and not worth wasting my time when i can just drive the cars I like on those 5 great circuits. I'll complete the game when US version comes along.
F1 season soon, gotta get US version too, to keep up with current events. Keep Jpn copy for momento, as 'Z' said. Worth two month jump on fools who didn't get Jpn copy, I couldn't wait any longer. Nice site!