I'm looking into Grafana Cloud currently. We run a few services across 4 different environments. I'd like to have a single place to view metrics as well as response times for various API endpoints, metrics related to RDS, etc. Also interested in incident management tool. We have around 30 EC2 instances running currently but will be scaling that up further. What can I expect in terms of total pricing? Perhaps hopping on a call with someone for Grafana would make the most sense?