I started importing games many many years ago, where I faced the cold true fact: American Sega Saturn market sucks. If you want quality Sega Saturn gaming, you have no choice but to import. And because of importing, the Saturn went from one of the worst console ever to my favorite console ever

Other than that, I've imported also a lot of DS, PS1, old Gameboy exclusives games, and now that I have a Japanese PS2, I'm also importing those.
Of course, I import a LOT of Phantasy Star related stuff. So yeah, importing is really the way to go for an happy gamer life