I don't really like punk rock... and some other kinds, so I probably won't want to listen to them if I haven't heard of them! :-P

Besides... I have no money, or very little money, constantly.

You have a steady job, a good wife and two good kids... the wife and children are a constant drain, but by most appearances... you seem to have money which you can spend on just about anything you want! :-P So... by comparison, I think I would be more likely to think that someone like me, who has no money, would be more likely to only buy music she or he has heard of. :-)

I've noticed when you never have any money, it means a lot more when you finally DO have some once in awhile...