The operation to finally take out bin Laden is the perfect example of "balance" in aircraft types to fulfill all mission profiles. The V-22 is fast, quiet en route, and has very good range for a vertical lift aircraft. But it cannot come into a confined compound with 'guns blazing' from all directions.
That's one of the reasons that tiltrotors will NEVER replace helicopters. They will perform missions better suited for their capabilities, and we should all be thankful for the flexibility and capability to support missions across the board.
Thanks so much to the guys that did the job that needed to be done in Pakistan. It doesn't matter what aircraft they rode in on, what they accomplished was the "ultimate mission" for this decade that so many people have been waiting for -- and how great it is that helicopters were able to carry them in to do the job!!!