That's neat. I personally despise the pre-facelift LS 430 / Celsior (2001-2003), but that's definitely something cool.
What I don't get is the guys who get "JDM" versions of cars we can just get here. Why would I bother spending extra money on a Celsior or Aristo when I can get an LS430 or GS here? Insuring RHD cars can be a PITA, and then there are the inconveniences of RHD like drive-thrus, etc.
Because you could get the Aristo with 2JZ-GTE power...enough said!
There are some option differences in the Celsior. But nothing too huge. The front passenger seat pass through for the rear passenger probably the biggest difference...apart from lack of leather if desired.
The main reason being typically lower mileage and typically in much better mechanical condition due to the very strict Japanese "Shaken" bi-yearly inspection.