Hm. I have anime merchandise (well, no daimakuras and such... got quite a few CDs, especially OSTs from Kanno, Kajiura and Satou, two figurines (not gonna buy any more... too expensive) and some extras from DVDs or books), but honestly, I do not especially welcome them, except for the OSTs. I also do not refer to myself as an otaku, since both anime/manga and games are just pastimes... And if they were more, I certainly would not dub myself an otaku, knowing of the extreme negative connotation this word has in Japan.
On the other hand, it really makes me wonder why the Japanese are having such a hard time accepting manga, anime and games as a part of their pop culture. America has accepted comics, Germany has accepted the Hamburg School of post-modern rock music. So why is Japan still struggling, even though they know they can export it successfully?