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Why clones are bad for consumers, and subsequently The Product
1) Clones indicate a lack of attention to detail. If a manufacturer cannot be bothered to come up with their own feature set and/or aesthetic styling, they also cannot be bothered to build a Product properly. I will not name names but those with a keen eye and sense of engineering who have both Brand A, high end product, and Brand B, high performance low cost product, where Brand B chooses to copy significant parts of Brand A's styling in order to piggyback on Brand A's popularity and brand image, will notice that Brand B has all sorts of interesting engineering shortcomings and a distinct lack of attention to detail. Brand C, high performance low cost product, with its own styling and some investment into R&D, will often tend to have better attention to detail because their brand is riding on their own image, not the coattails of others. Don't think for a moment that this applies to only flashlights. Consider my earlier car analogy and follow up by considering clone manufacturers and their reputation in that industry.