The question of open and available pricing may be clear for consumer-oriented shrink-wrapped products of limited scope, but less clear for products and services that require negotiation.
Should all full-time employment candidates publish their compensation requirements on resumes? Or, should they seek an opportunity to explain what they may bring to the table first, before disclosing their "price".
Should vendors disclose their prices to people who may simply be doing research for the purpose of displacing a vendor, by offering a competing solution? Or, should vendors qualify whether a person is a valid prospect (or a competitor) before disclosing their price?