[pacohope]

The people desperate to use IPv4 are not AWS themselves. AWS doesn't buy stuff just to have it. They buy it because customers are using it. AWS customers are moving stuff out of their data centres and don't know how to use serverless, load balancers, dynamic cloud capabilities (like spinning down instances when they aren't in use) and so on. Customers are doing lift-and-shift in vast volumes and they're doing it in the only way they know how.

[toyg]

This. A lot of those lifted apps will be legacy services built in 2000-2009 that must run 24/7 and only know about ipv4.

[exikyut]

Why specifically -2009? What happened in 2010?

(I'm aware a lot of things happened in 2010, but (as someone interested in the industry but somewhat removed from it) I'm not aware of anything that specifically happened in 2010 that changed the landscape in a big way.)