Apple boss Tim Cook says prices to rise due to memory chip costs BBCTim Cook says RAM expenses are ‘unsustainable’ and Apple is going to raise prices The VergeApple to raise prices due to memory chip shortage, CEO tells WSJ Yahoo FinanceTim Cook says iPhone price increase is ‘unavoidable’ MashableTim Cook Says Apple Price Increases Are ‘Unavoidable’ Due To Memory Crunch Engadget