Sounds pretty awesome, but holy shit, that's expensive.. I went on the Melloboat cruise 2 years ago, that was beyond awesome and about 10% as expensive as this..
To each his own I guess. $1200 for a 4 day cruise and 40 bands seemed reasonable to me. Granted I live in the same state where the cruise leaves from so I don't need airfare, etc.
That's another issue indeed, the flights I would have to pay. And I understand it's more expensive than a regular festival, but then, it's way more comfortable too of course.