There are quite a lot of cases where you could find yourself facing a large bill unexpectedly. Forgetting about a server you spun up to try something out, with may platforms having your server hacked (or even DDoSed) could result in huge bills for bandwidth. With Dply you only pay what you pay up-front if you choose to add time to a server. There are no bills racking up. The flip side is that if you forget about it, it could vanish on you. Automating your deployment with something like a user-data script that pulls your code from Github would make this less of a concern. Permanent services on Dply are certainly possible but not the primary use case for most users.