Whilst I will agree that Willem provides more entertainment for your dollar than the average Lister fan..... I feel I must at least partly jump to his defence here.... $1000 for 8 hrs training & lunch thrown in; yes, it's not cheap, but it's far from expensive. If you want expensive, just phone Avaya or Oracle & ask how much a course on their flagship products costs - multiple thousands of dollars is a typical reply.
What would be annoying is, if I were to buy the $1000 of training, if it turned out to be as rambling as one of his videos, and if an hour of the 8 hours was spent slagging off the forum....