> OK.. What were they built for ?
This is really very very simple to everyone but Egyptologists.
They were built for a reason that made perfect sense to the builders. Their knowledge, intellect, and abilities were all required to make manifest their desires.
Learning what these reasons and knowledge are will require we use our reason and knowledge to explore the data.
The problem seems to be that Egyptology controls the research and has already decided based on a book of magic that they know everything and don't need no stinkin' science.