GT5 Prologue: The Most Expensive "Demo" Ever!

Sony must have some HUGE ***** for releasing a GT5 demo for$40 Granted, this isn't your average demo. There'll be 40 cars, 5 tracks and online play, which makes it a little more along the lines of a full game. Still, maybe GT die-hards are willing to pay that much. It's not like people have never bought full priced games just for demos, now have they?