If you tell them what you are looking for, if they are honest, can say no or short-change you.

Or they can just lie and say yeah we cover that.

If you ask for their range, if they are honest, provide their range.

If dishonest, now they have to provide a range which is within the range you are looking for, and is probably more difficult to gauge.

I find it easier to lie on a yes or no question, than a question of quantity.

But in the end, if you provide a quote, they may save themselves money if you value yourself below market.