I've been buying the CD+DVD versions of every single, album and DVD since I became a fan. I used to get OS presses, but now that I'm working a little, I buy JPN first press!!
I'm also slowly building up my collection, since I became a fan only in 2004, so I buy the old singles and albums 2nd-hand. So far, I'm only missing about 5 singles/albums. I feel better giving old CDs a good home, rather than buying a brand new one.
As for goods, I bought them when I was in Japan, and when I went for concerts. Now I don't really get any unless I really really like them. ^^