Im not sure what you are arguing or trying to explain. Whatever the MSRP toyota sells to the dealers can still be ridiculous.
My point is, a lot of the parts I have looked at for Toyota's specifically are ridiculously expensive compared to other brands. Take the nav unit for my GX460 that had the screen crap out on me. I went to go ask the dealer what it costs to replace the screen. You can't just replace the screen, you have to replace the entire unit and it costs $10,000. No that is not a typo. I went and checked websites to verify the price and was getting $9-11k for the unit.
$10k for what was an incredibly crappy nav system!
Turbos for the new V35A motor in the Tundra/LX600/GX550? Like $3000 a piece. Turbos for a 3.5L F150 Ecoboost, $1200 for the pair.