If you like acquiring passports, then I'm not sure if you want to go for the Japanese one, since you have to give up your previous citizenship afaik.

You could’ve stopped at 1.

> People with money like acquiring passports.

Japan doesn't allow dual citizenship, so not very attractive for people who want more than one passport.

Good reply unlike some who downvotes without good explanations.

Japan is probably not the best choice if your goal is a second or third passport, as others mentioned above. Countries outside East Asia, especially in Europe, tend to be more lenient about granting citizenship through naturalization, and many have friendlier tax systems (i.e., unlike the U.S., they don’t tax citizens who live abroad)