This year fireworks sales are triple what they were a decade ago. Firework displays are more dramatic and more high tech than ever before.
New studies suggest even your own back-yard shows are much more extravagant than they used to be.
The American Pyrotechnics Association said in 2006 firework sales totaled $900 million.
Vendors said the first two weeks of July will be a busy time as many people are waiting for a weekend to celebrate.
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