At The Times, we realised that converting customers who paid £8/week for the printed newspaper into customers paying £2/week for the digital edition (often after paying Apple £500 for an iPad on which to read the edition) wasn’t great business. ... So — over two years — we gradually raised the price for those original customers to £6/week. The problem with "do not talk about pricing" is that you're assuming your customers are idiots. There's nothing wrong with having a bunch of profitable idiots as customers, but that's not quite the target audience for a product like newspapers. The simple fact is that the cost of delivering volume to subscribers (one more subscriber) is so teeny tiny small that inflating the price more than a reasonable amount (when in fact you're losing advertising eyeballs) is what's not smart business. Companies that presume I'm an idiot don't get my business.
You cannot talk about pricing without talking about cost. Intelligent businesses are unafraid to be transparent with their variable costs (which for a digital-only newspaper are significantly less than for a print version); what trips prices is the bulky overhead fixed costs: CEO and executive management pay, benefits, and unnecessarily swanky office space.
Realtors are probably the best example of this IRL, operating in an industry that "doesn't want you to talk about pricing" (e.g. negotiated commission at an hourly rate, for example) ... just sign on the dotted line and let them abscond with all your equity in a lump sum payment.