Because it's that
important, even bought the domain contentisdead.com to reveal and teach this. The truth is, selling content no longer as profitable as it used to be. Yes, many marketers are still selling successfully - but they didn't tell you that they would have made much more in the past by just selling content.
This is why, experienced marketers are no longer selling courses as stand-alone's as it's hard to fetch $500 price point and above. Today, it's "bundled" with a community, coaching, software applications, etc.
I mean - why would you want to pay $500 or even $1,000 for courses? You can just go to Udemy.com to find similar content for 10% of what marketers are charging for.
BUT - that's not the main reason why selling content is "dead". There are more sinister reason behind it that's unstoppable (which will be revealed when contentisdead.com is live).