Agreed that some products (a lot in enterprise software or consulting) require a more buttoned up pricing strategy, but if you serve the mid-market at all you should at least provide them some sort of signpost. "Here's what a project sort of looks and here's where the price starts"

With good design you can make it happen. You'll actually help the sales process 10x, because you'll get rid of the tire kickers and people who are just sort of interested.