So give people some sliders with all of those things, and let them drag it around.

What is my cost with a million objects, an average computational complexity of 3 compute units per search, etc.

If you can't do that, at least give some example scenarios (small, medium, big, huge, etc) with total pricing.

Just... something. Anything would be better than a "contact us" link.

I absolutely refuse to use or recommend anything that looks like a black box enterprise solution if it lacks transparency.