Talk:General Discussion/@comment-14.169.61.64-20141021114949/@comment-24930367-20141021150409

You'll need that much if you feel, even for a slightest bit, unlucky during sorties.

Plus, farming drops, again, if you don't get what you want during boss kills.

Then there is support expedition to take account, sparkle runs, developing equipment in the middle of event, etc.