I am the original owner of my SC300, and in almost 13 years of ownership, I have had to replace only the starter (rebuilt for about $300) and some gasket seals. The rest of my ownership has been only the standard maintenance at the various intervals (the Big ones are at 60K and 90K). This is the first Lexus I bought, and I will remain a Lexus fan forever after this experience. Not only does the car still look sharp, but you can get the Lexus ownership experience for around $5-6K now used. I doubt you could find a better vehicle out there for that price.
Reliability; an incredible turning radius that makes parking anywhere a breeze; excellent 12-disk CD changer and sound system.
A better AM radio/antenna; bigger cup- holder, that's all