It depends upon how my character views death. My general outlook is, once they're dead, they stay dead. However, I have had two characters ressurected. The first of those was a character who wouldn't have wanted to come back. The DM sat me down and basically said, "Look, the others are royally screwed if he doesn't come back. He can go his own way after the session is over, but we need him true ress'd." I went along with it and brought in a new character the next session, but bringing him back STILL feels wrong three years later. The other that got ress'd expected it of the group, even though this was the first session of the game (10th level mini-mod). Took the level hit and came back as bitchy as ever.
There was another that the group was unwilling to bring back in anyway, shape or form (my poor wild mage). There was one more whom the group would have raised. Unfortunately, he had been turned into a vilewight and they weren't willing to shell out the extra five thousand for the ressurection.
The two who got ress'd were from one gaming group over the course of two seperate games. The two that didn't were from another gaming group, both in the same campaign.