A fan of the NSFW, just like the rest of us.

A somewhat odd article from Time Magazine's "Asian Heroes" section profiles Hideki Matsui and mentions his peculiar hobby:

[H]is only eccentricity, if it can be called that, is his extensive private library of adult videos. His refreshing ability to laugh self-deprecatingly about his porno collection, reporters say, is one reason why fans and even nonfans have taken to him so much.

Well, as far as hobbies go (who needs a hobby like tennis or philately), I can certainly think of many far less innocuous ones than collecting smut. Of course, anyone with a high speed Internet connection can't help but wonder why anyone would ever pay for porn. I don't know if it makes me like him more, but this just makes that time when Matsui dressed up as a pimp so much funnier!