Only an aggressive push to find a fit that can be leveraged will save it from becoming just another fond brand memory.

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Amtrak's eVouchers are perhaps the worst product introduced by a major travel brand in recent memory.

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And because the SanDisk brand was already associated with memory cards and USB devices, it wasn't a great leap for customers to accept a flash music player from the same company.

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Liberation will be available as part of a Playstation Vita bundle with a 4G memory card and a brand new white Vita.

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As for brand loyalty, it turns out that memory and emotion play a big role.

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In other words, you think about memory keeping, the simple, evocative idea on which this wonderful brand was built.

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The most menacing of these is that posed by archrival Samsung, whose windfall profits from sales of memory chips and huge internal demand for advanced logic chips for Samsung-brand electronics products like smart phones give it sizeable advantages in the form of both financial firepower and in-house vertical integration.

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Meera Syal and Jo Brand joined one of the first groups, playing "dementia fact bingo" and testing their memory of everyday objects, such as the features on a one-penny piece.

BBC: Comedians Meera Syal and Jo Brand are 'dementia friends'