Since the PS3 is region-free, and there's "ways" to make your system region free, have you ever imported before?
Well, yes I have. 30% of my gaming collection are Japanese imports, from GBA-PS3.
As a Mother/Earthbound fan, I thought I would import the original game, which was for GBA in Japan, back in 2002. Now as a PS3 owner, my last two imports were Final Fantasy XIII and Sengoku BASARA 3, but was just preference of Japanese audio, especially for Sengoku BASARA 3.
Some of the games I imported were because it's Japanese version was better(Naruto GNT), they were exclusives/temp-exclusives, or the gap between the American release was pretty big.