I have noticed the whole rock thing... And some seem to like classical.
I'm not that big a fan of most classical songs, but ones such as this one are awesome to listen to... That Wagner was one hell of a composer...
And that link also has an interesting accompanying clip.

Apart from that, I personally like some genres such as grunge that haven't been as popular in very recent years (though pretty much everyone knows Nirvana and the like) and whatever I like the sound of when I hear it somewhere. Something I noticed was that a band I like, deftones, is basically unheard of by many hear, yet I heard from someone in the US refer to deftones as 'mallcore' suggesting it's played in malls and stuff. If that happened here I'd be damned surprised...

But then most parts here are stuck in 'dance', 'pop' and 'emo-rock'...
Some shops still play those old Venga Boys songs that make you want to rip your head from your neck with a rusty shovel.