While I am not a Guru (Yet) I don't consider myself a newbie anymore either... The How-To's, PETS and everything else is normally written way above even my level.
I believe pets/how-to's should provide the guts of the topic. I understand that folks want to add a bunch of history but lets face it... Most users are starting out and we are trying to convince them to move away from the M$ they so love.
History lessons can be provided in another doc or at least at the end of the help file.
Basically I agree with the previous two posts but it is early and after a 12 hour work day and possibly one today I am beat.