Stadia Maps, right? Your pricing is better than MapTiler, but both have the same issues for us - there's a significant jump from free to paid (no pay-as-you-go option) and server-side caching is prohibited. Both of these are completely sensible business decisions, but don't make sense for us specifically.

We have plenty of server resources from both our local partners and various cloud providers that have non-profit grants, but basically no regular budget to spend on SaaS, so self-hosting everything is the only thing that makes sense.