i Have a 99 ls400 with 59,600 mile, just did the 60k service cost $545, i think its worth it, they change a lot of things, oil change, transmission,brake fluid, air filter,ac filter, rotate all four tires,rubber wiper blade x2,, gasket fuel tank,fuel treatment, replace differential oil, lubricate drive shaft bearing, top off all fluids, safety checks on all compartment, a free car loaner lexus I pick the IS350, a free car wash.
I would pay a little extra knowing the job is done right, just a piece of mind. if you take to independent shop, just think of all the inconvience, you would have to arrange for a ride, to and back, and possible the mechanics are not accustome to working on these beauty machine.
bottome line is why safe a buck or two, when you can have piece of mind and convience. After all part of driving a luxury beauty machine is having to pay a little extra, just my 2 cents.
An