I never understood this train of thought.... I don't know how many games I've played in that didn't have a cleric or anyone with healing powers. We always just carried healing potions, or simply ran away from the fight if we started getting trounced. Worst case scenario, someone dies and you just drag them back to town for a resurrection.
Losing a character-- even if they can be raised/resurrected-- almost always hurts my enjoyment of playing that character. In a home game, I would almost certainly prefer to just start a new character. In organized play campaigns, I pay for the raise (if I have the funds) and keep on playing, but man does it sting.