yeah, i think i want the warranty...piece of mind kind of thing. i love the car and plan on keeping it for many years. i remember the high pressure second sales guy at the dealership telling me that once i drive off the lot that the DVD/NAV is not covered at all unless you get the extended warranty. you know the guy, he is the one that tried to sell you the lojack...
my research tells me the earlier you buy, the cheaper the warranty is. i basically want the policy that covers pretty much everything, except tires, brakes, oil changes, etc.
i also know you can do much better than what lexus offers, and you can still bring the car to the dealership. i wouldn't mind paying a few grand now for the coverage even though i have not had one problem with the car. one repair can easily pay for the warranty in full.