You seem to have cornered all three Egypt threads. Everything is fine, but you might be better getting a guide for the pyramids if you are not cool about dealing with pressure from touts.
Visa on arrival is fast and simple: in very many entries I've never encountered trickery from bank employees selling visas. But I have seen tourists getting confused with money after long and tiring flights - just have the right money, and say how much is there when you plonk it on the counter.