> it's not more expensive to use GKE than to roll your own Kubernetes elsewhere.
$13 per month per egress rule, bandwidth costs a factor of 100 more expensive than dedicated hosters, and costs for hardware 10x of what dedicated hosters offer.
I’m not sure what your definition of "more expensive" is, but compared to renting dedicated hardware (e.g., from Hetzner), or colocating, GKE is significantly more expensive.
Of course, if you’re on the scale of Spotify, you can get much better deals – but from what I see on https://cloud.google.com/products/calculator/, it’s not cost-effective.