If you need to ask... you are attempting to gather information to make a rational decision. I really dislike that [gatekeeping] meme. People who rely on "if you need to ask..." canards are most likely not in your interest.
That is not really about buyer, but seller. If seller hides price, that is usually good indicator. They know that they don't compete on price, that showing price frightens potential clients.
There are some markets (like 400G switches) where all the sellers say "call for pricing" so that doesn't really give you any information.