I really think we're talking about things the wrong way. The argument shouldn't be slower/more expensive. Use the right tool for the right job. If it's simple R

I really think we're talking about things the wrong way. The argument shouldn't be slower/more expensive. Use the right tool for the right job. If it's simple REST don't use serverless. It's CPU bound stuff like generating thumbnails, parsing xml/json or file conversion is where serverless helps.