Interactive greeting cards are still early applications for PE
What do you think of greeting cards that light up or play music? Results of an informal, nonscientific survey suggest that many people like them and enjoy receiving them but aren’t necessarily willing to pay a premium price to purchase these cards. Cards with sound are priced two to three times higher than traditional cards without sound, which may be too high a cost to convince consumers to make a switch. Technology that can lower the cost of production may be a solution that makes a difference.
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