People who are crazy about JDM should go visit Japan and see what "JDM" looks like when everyone has it because that's the norm.
It's kinda like relishing an "exquisite piece of pottery from a foreign culture" and then finding out everyone in that foreign country uses the dime-a-dozen things as a bed pan.
That being said, there are things JDM that I wish we had; engine, accessories, etc.