Meanwhile the cost of his videos is insanely high. The "insane" price money is the smallest part of it. He has insane sets he uses for only one or a small number of videos, he has a giant staff, high quality gear and many of his videos include either challenges going on over very long timespans or involving a high number of participants, making the logistics, recording and editing of those videos challenging and time intensive. Most TV shows could only dream of doing what he does.
He started out simple, pointing a phone camera at himself counting really high, but his current channel is not a great example of a low barrier to entry. He explicitly sets himself apart by doing what other youtube creators or TV shows simply can't do