Many vendors do think like this when they start their offer with 'how much is your time worth'? Indeed, your tool might save me 1 hour but it's not necessarily worth the price.

On complex codebases though I mostly need the IDE just to navigate code. Anything released in the past decade knows how to index some classes, jump around and do 'find usage'.

I agree that tooling most definitely helps, starting with your office, your chair, your hardware and your software config. You could also get 1% out of sleeping more I think.