I've just bought my 3rd 430 and have been driving the LS since 2005.
These cars ooze quality and I get a reall buzz from that!
1) The paint and chrome work still gleams after 20 years
2) The shape and interior still looks very modern
3) The interior materials are the best quality unlike fake leather these days
For me the 430 was the flagship and still look forward driving mine as if its my first day with it!