There are also elements of stock price hype and geopolitical competition involved.
The major U.S. tech giants are all tied to the same bandwagon — they have to maintain this cycle:
buy chips → build data centers → release new models → buy more chips.
It might only stop once the electricity problem becomes truly unsustainable. Of course, I don’t fully understand the specific situation in the U.S., but I even feel that one day they might flee the U.S. altogether and move to the Middle East to secure resources.