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This study examines the marketability of long life products. We selected furniture, motorcycle, automobile, and refrigerator as study subject, used Evaluation Grid Method, AHP and conjoint analysis to clarify whether "long life" is an attractive purchasing factor. According to the result of analysis, it is understood that although consumer acceptance of long life products is not very high, it is promising to sale to segments that prefer these. It is also clarified that long life product must have reasonable price and good design.