Cloud is important for those who need it. We did run a fast growing startup (sometimes 100% MoM jumps), 5M active users with 50k concurrent users (not visitors

Cloud is important for those who need it. We did run a fast growing startup (sometimes 100% MoM jumps), 5M active users with 50k concurrent users (not visitors) with DB writes on 6 machines + 2 DB servers and $100M ARR 10 years back. If you're this size, MRSK makes total sense. If you're much larger or growing >50% MoM continuously, K8 in the cloud makes more sense.