Depends on your point of view once the situation begins. If you think I'll be here a couple of days every fire can use a match, maybe so. If you think, I don't know how long I'll be here, every match is precious, I don't think so. Even in a bad situation, life can get worse. So saving your supplies until you absolutely need them is always important. The best example is the question, do I destroy my knife so I can survive now? No, not if there is any other option available even if its harder and takes longer.