That's true. For me, I view redundancy as one of the values of Heroku. If you're deploying on your own, that may still require provisioning additional servers as needed, manually backing up databases periodically, etc etc. It can be a time cost beyond just deploying it once in some cases. Still, is the cost of Heroku worth it? It's an important question and a personal one for most I think.

I tend to think of deployment as a challenging thing too but the more I discuss it the less I think of it as a mystery. Thank you for sharing.