What about 3 minutes 20 seconds?
Ah, I know what you mean. Being established, you wouldnt find them all that life changing.
From the other side, as a YTer, I continue to focus on the value of the message for those that do watch them.
The Hidden Gems series, for instance, is designed to help someone getting started to save a lot of time, energy, and money in getting set up so they can more quickly focus on making money and other aspects of their business.