Why is AI making computers and games consoles more expensive?

Why is AI making computers and games consoles more expensive? The latest commodity coveted by the AI industry is computer memory, and the sector is signing deals directly with manufacturers for billions of dollars worth of chips - the very same chips that consumers use in smartphones, laptops and games consoles. At best, this is driving up prices, and at worst, it is causing shortages that limit production. Why does AI need so much memory? AI models are very, very big.