Loud, you make some good points, I belive I did not state that coil and spring was superior, I stated that it was more reliable, less prone to any problems and cheaper to maintain.
As you mentioned, the LX suspension is available elsewhere, it was also added to the LC in the last 24 months of production, and accordingly those models suspensions reliability rating dropped.
Please understand that I think the world of Lexus and thier thier warranty, and yes, as a salesman myself, I understand that I my embellish to get my point across, and he may have been doing so as well. Either way, the LC is similar enough to me, that is does not warrant the worries. Why pay 10K more and be making the payments on it when you will be driving an ES, GS or RX as a Loaner when it is in the shop. From what I can tell, you also own a Porche, a fine machine with a specific purpose, this would lead me to believe that you may not be a sensitive to the Total cost of ownership as I am. I wish I had that privledge.
If you would like we can continue this in chat, I do appreciate your opinions. I feel I have hijacked this thread and apologize to the creator.