I purchased a 2008 LS460 with 60K miles with all services done at a dealership up until 2017. After that it sat in a garage and was driven around once a week. I went and did a pre-purchase check with a Lexus mechanic who has huge overhead and was originally told I needed all kinds of flushes, all new control arms, an alignment, brakes, spark plugs, tires etc. This was $5k worth of work for a car I was going to buy for $9k.
I did due diligence and took it to an alignment place who checked the control arms and stated that one was in need of changing in order to do the job. I also went to a shop the only works on Lexus and Toyota vehicles. They agreed with the alignment folks that one control arm needing changing. Their list was also extensive but didn't touch the first place. The owner and mechanic was a mater mechanic for Lexus. By that point I was so stressed out I was willing to walk everywhere in California.
Common sense slapped me in the face and I consulted The Manual. I compared their lists with what should be done at 40k-75k and compared it to what all three places were suggesting. Considering I trust very few when it comes to cars, I followed The Manual. I did everything it suggested and nothing more. I also took her to a Tire Shop (which I do every few weeks to check the pressure) and they said I'm good to drive for quite some time, so no money pouring out in that direction.
As others have stated before me, use your best judgement when buying. If it's too good to be true, it is. If the facts back up statements, you're golden. I had to make this decision to purchase by myself because my dad wanted me to grow and learn. I did and it was probably not so bad that there weren't too many posts about this car at the time. I learned that it's important to feel your car, know your car, love your car.
Driving a Lexus IS a luxury. You pay luxury prices and your bottom gets to enjoy true comfort. I also find that nothing tops the gas guzzling V8. It gets the hell out of its own way. It's supremely quiet on the freeway and drives like a big boat. Is it practical at $62 per fill? No. I drive 10k miles a year max, so it works for me. If you take care of it, it will take care of you.
Great car!