Get Sonic Generations for cheap now (before it drops in price a week after launch)

It's as simple as that: both Toys R Us and Amazon are discounting Sonic Generations pre-orders prior to the game's launch on November 1. For $37.49, you snag either the Xbox 360 or PS3 version at Toys R Us; Amazon is only offering the PS3 version, oddly enough.

Of course, this sale is a dangerous proposition: on the one hand, you can get a game when it launches for pretty darn cheap. On the other hand, the nature of the marketplace dictates said game will fall in price soon after it launches. So is this worth pouncing on now or should one wait it out? Decisions, decisions ...