Amen. But frankly, Nargaroth sucks. I bought it live, at the second date (Antwerp, nov. 2nd, 2004) of the mini-tour the shirt is from. They also have plenty of MDB shirts at the Basta! in Leiden (Netherlands) though, in addition to a lot of black metal shirts. I guess here in Europe you've got much more chance to find anything that goes against / isn't part of MTV-culture...
Just two from gigs I've been to - Robert Plant and Rush - never usually buy t-shirts but the Rush was a cool tie-dye one for their Feedback album and the Plant tee was bright yellow with Welsh (the language ) on the back