Campaign could never work unless it was set free to go anywhere it wanted, anywhere at all. A mere book line like the PDAs is far too inadequate to cage such a beast. It all comes together in the end in a way that should be a complete copout, but isn't. That said, Campaign's ending works far, far better than Sword's did. The two are stylistically similar, but a world apart when it comes down to it.
Campaign is a work of art.
It's the unrestrained blatherings of a madman loosed upon the world. It's an exquisite journey through the realm of the possible and the impossible. It's so fundamentally wrong on so many levels that it forces the reader into new levels of understanding. It's a fantastic, painful, wonderful, terrible, sideways book. It's probably not for everyone, but I adored it.