"Reserving the conversation around pricing until after you are in contact with a sales person is often helpful, because these products do have very different capabilities."

Which you can easily list, with the prices next to them.

Look, I have never, ever, ever found it more helpful to talk to a sales person than to see an actual price sheet. Never. If I don't like the price, but it's just outside my budget, I can call you and see what you can do. If it's so far outside of my budget, then talking to you is a waste of both your time and mine.