[MENTION=21724]cyccommute[/MENTION], there are many people who prefer to pay a high price and feel they get their money's worth. In a sense, you do get what you pay for. While a person could buy 4 or 5 cheap lights and replace them as they fail, spending the same money, but some people don't want to do that. Plus there is a value in having a convenient self-contained package rather than a light with a mount and a separate battery with its own separate mount.