> For most applications 1 location is probably good enough.
If your usecase doesn't require redundancy or high-availability, why would you be using something like Cloudflare to start with?
The DX is great: simple deployment, no containers, no infra to manage. I build a lot of small weekend projects that I don't want to maintain once shipped. OpenWorkers gives you the same model when you need compliance or data residency.
Security. I host personal sites on Linodes and other external servers. There are no inbound ports open to the world. Everything is accessed via Cloudflare Tunnels and locked down via their Zero Trust services. I find this useful and good, as I don't really want to have to develop my personal services to the point where I'd consider them hardened for public internet access.
When you have a simple tool you have written for yourself, that you need to be reliable and accessible but also that you don't use frequently enough that it's worth the bother of running on your own server with all of that setup and ongoing maintenance.
Free bandwidth. (Also the very good sibling-answer about tunnels).
Cloudflare gives me free resources. If they tomorrow reduced my blog to be available on a single region only, I'd shrug and move on with my day.
Price
It takes a minute to setup for CDN usecase.