The pricing model of serverless platform is enough for me to not want to use them. Being charged for every little thing your app does is crazy especially when you see horror stories of runaway bills because a function has a simple bug in it that you didn't catch and overnight it ran up your bill so high you can't pay it and are now praying the company feels bad for you.
I'm scared to use serverless platform unless I don't have to put in my credit card lol.
I feel safe paying the same price every month despite my app growing. Servers are powerful these days and are very simple to maintain and scale using cloud platforms because they do it all for you lol.