I agree with this. Working in the IT industry as I do, most times vendors will GIVE AWAY product (or at least drop their pants on prices so that the product is a
loss-leader), just so the money can be made on the consulting. In other words, knowledge of how to properly configure that product and use it to its full potential.
I don't understand people who think that knowledge should be "free" or at minimal cost (e.g. merely covering the production cost of putting that "free" knowledge on DVD). Knowledge is hard-earned and is never free. Product, on the other hand, can be made nearly free with competition. In the product world, the consumer always wins. However, the consumer must pay for knowledge -- it certainly isn't spoonfed.
-Sean
<-- gets a hefty rate for his knowledge of data center networking and information security -- stuff you won't find on Google or wiki