Paying 2x as much per server means you need to drop well below half just to break even. But you always need a server or you can’t handle new requests. So at small scale there’s zero benefit from dynamic loads.
> you always need a server or you can’t handle new requests
You don’t always need a server, you could also just go serverless, get charged 10x while you make your architecture a distributed, slow, hard to debug mess.