They probably have a lot of potential infrastructure savings. $1/80 searches is an absolutely astronomical cost.
I’m imagining there are quite a few gains they can get by way of optimization, different technologies, and optimizing hot paths to bring that number down.
It really depends how they built this thing. For instance, if they built this on the AWS ecosystem, using more than straight compute/K8, their costs are going to be an actual order of magnitude higher than if they didn’t.