Fireworks are a funny one because you're completely right and also not completely right I think. It's one of those unresolvable dichotomies of life where two opposing ideas are both true at the same time. I've often thought fireworks were the most obvious way to set fire to a lot of money that could be better used somewhere else. However, what is also true is that humans have a deep need to celebrate and to come together in large groups and have shared experiences. Fireworks are perfect for that. You can put a million people together and launch a massive firework display and they will all immediately connect with each other through the shared experience of going "Oooooohh" and "Aaaaaaahh" :) Fireworks are awesome and also, personally I feel they remind me that there are bigger things out there than the daily grind of existence.