Yev here -> great question! We are a bootstrapped company and we focus on inexpensive storage (https://www.backblaze.com/blog/vault-cloud-storage-architect...). Because we've built a robust system that doesn't use a ton of expensive components we can provide hot cloud storage (B2 Cloud Storage) and computer backup at an affordable rate while still making decent margins. To learn more about our business and decision making, we have a pretty cool series of entrepreneurship blog posts that might be interesting to some: https://www.backblaze.com/blog/category/entrepreneurship/