No one is arguing the point of value at a Lexus dealer. If you feel the extra details and attention are worth the money, good for you. You are free to pay for it. With respect to the OPs original post, I still find it highly offensive that an individual dealer tried to sell the ipod attachment at a price above lexus's own MSRP. This is like going to the supermarket, seeing a carton of milk for 2$, and at checkout time, the clerk tells you it's 4$. Then when you bust his balls, he tells you "sorry, it's 3.50!" That's not premium service. It's greed!
My lexus dealer is expensive, but at least the pricing is up front and honest. I know an oil change costs 89.99$. I either pay it, or go elsewhere.