You should have called it 'Doukutsu Monogatari' and laughed at the bewildered look on his face.
As for the questions:
1. Of course I do.
2. No, I'm usually too embarrassed by my own purchases when I'm shopping.
3. I usually do what I want, but I'll admit that I don't ever really get into anything mainstream. In most cases, when I get something 'mainstream', it's because it's a time-tested classic.
4. Who knows?