You do realize the deal applies to the Prophets as well, right? Mira would've been willing to take it, but... [she's dead now.] As I've told the others, I'm willing to accept it as well, but only if the dead are revived before returning home and therefore someone can kill me and take my place.

[Seeing as how he doesn't even want the life he has now, the idea of living forever is torture to him.]