The benefits of LED lights has come up a few times this week but one posting confused me. Someone suggested that there's no need to carry extra LED bulbs but, instead, to stock extra batteries. I may have misunderstood. I understand that LEDs are a brighter light and last longer than traditional bulbs, and they appear to be more durable but are they indestructible? Wouldn't we want to ere on the side of caution and have extra bulbs just in case?