Check out this article from today [0].

It sounds like it's more of a profit maximization function (and not just demand) with GPU rental prices increasing 48% since Feb.

> Renting one of Nvidia’s most-advanced Blackwell generation of chips for one hour costs $4.08, up 48% from the $2.75 it cost two months ago, according to the Ornn Compute Price Index.

[0] https://www.wsj.com/tech/ai/ai-is-using-so-much-energy-that-...