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Most businesses look at payback time on stuff like this. It didn't take very long for restaraunts to switch to CFL (for the most part) because they have 1,000 lights in their establishments. If its got a pretty quick payback time, then I see them investing in it a lot easier than if its got a 10 year payback.
And jeez, 10-15% From side skirts? Imagine an actual aerodynamic design, not a band aid.
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