recently went back to play Sam and Max and I grew bored within 5 minutes of starting the game. Adventure gaming simply doesn't cut it for me anymore. I need something more involving. Sure, adventure games are ideal for good storylines and characters, but if the core gameplay isn't interesting, it's all for naught. Ultimately, adventure games boil down to pixel hunting and trial-and-error, neither of which is particularly fun.
I don't understand why you still have not brought up the real reason why the adventure genre died (FYI, it did not) and that is because no developer succeeded in making a successful transition to 3D.
Nowadays it's all about fancy 3D graphics, if your game doesn't have them, it won't sell. Either you are mainstream or you are out of business.
Fancy graphics is also the primary reason why I have hope that Dreamfall will succeed and become a great selling game; alongside with an epic story and an immersive gaming world.