shy about prices

I assume a lot of you are in the industry and maybe you can answer this: why is it so hard or impossible to get pricing info for speakers?

I received a lot of suggestions for my speaker list to include more brands and I tried. I lookup up the company homepage, I searched for pricelists, however out of date, I emailed the company - nothing. Why are companies "hiding" the prices of their products they intend to sell?

This is not a generalization, I don’t mean to conflate companies with user-friendly and informative web sites (~30%) with the mystery ones (~20%). And the rest (~50%) are OK/could be better.