Hard to understand how it would be legally challenging. ISP's do it all the time when differentiating their business plans from residential. Both services run over the same infrastructure and you typically get the same/similar speeds, but a key difference is an SLA with the business plan.

IANAL either, but I don't see why it would be? Just have a separate cluster type, e.g SLA Zonal, SLA Regional. The SLA already differentiates the current cluster types. Anthos Clusters are also not subject to any additional fees?

And having it opt-in will save face with those users of GKE where an additional $73/m is significant.

Opt-in for the SLA and additional cluster cost would be fantastic. We run pretty small clusters but don't need any additional SLA's on top of what's already provided. Frankly we could care less about the control plane SLA.

btw. I would prefer to have something like a cost reduce if the cluster runs 24/7. Currently we also do not need that amount of SLA. but we actually have a single cluster and are a really small customer that reall choose GKE, because of no management fee (i.e. nodes are really expensive compared to non cloud providers). But we never used more than one REGIONAL cluster (we also never spun up a new one, we only change workers). And now it will cost us money. What a shame.

P.S.: german sites have the pricing wrong.