For me Japan doesn't seem that foreign, I mean they have a basically individualistic outlook that doesn't seem to strange to an American, at least this American.
I saw a line printed pin up of Lum from Urusei Yatsura when I was in college, went to the anime club, and developed an obsession with Japan that continues today.
It is well compartmentalized (I rarely talk about it on HN) so I rarely come across as a North America weeaboo but if you open my backpack you might find a
https://en.wikipedia.org/wiki/Kendama
and a Nintendo 3DS and a Sony Minidisc player and a box of 4x6 prints I made some of which are anime art and
https://en.wikipedia.org/wiki/Ukiyo-e
and also a book or a copy of the Pillow Book. (This is not all I am into you will find some Italian and Russian futurist painting reproductions, maybe a book about Fuzzy Logic or Margaret Thatcher too. Probably the strangest thing about my backpack is that it is overpacked, something appropriate for a long trek into an intellectual desert.)
Until Japan every non-western culture posed no effective resistance to imperalism. The Japanese felt they had choice but to beat the white man at their own game and they've come very close to doing so, setting a precedent for other cultures.
If there was one thing unique about Japan I'd say it is highly resistant to Christianity. In the past they banned Christianity and oppressed them just as violently as Christians oppressed Christians in Europe. Today there is little direct hostility to Christianity but there is almost no market penetration for it. Contrast that to Korea, where people will discover it, think it is the best news they ever heard, get more people to show up at church and next week have them bursting out the doors and ready to start a new church across town.