Serverless may cost more than self-hosting but for some developers the serverless option let's them focus on their product rather than worrying about server maintenance.
Here's an informative twitter thread about serverless from December 2020. The company is 'Fathom Analytics' who explain why they chose serverless (but also explain why it may not be suitable for everyone):
"We'll pay a premium for serverless so that we don't have to manage servers. It's a huge stress relief and it's worth every single penny":
https://twitter.com/JackEllis/status/1337425333423755264 (or https://nitter.net/JackEllis/status/1337425333423755264)
What are you thoughts on serverless? Are you using it for your app or product? Or do you prefer the traditional server option?