I reckon it's harder and harder to write good "New" music... everything's kind of already been done and the newer bands that try and be different tend to end up ina really niche place.
There's a lack of musical talent imo... Kings Of Leon for example, the bassist had been palying 4 months whe they released thier first album.
I don't see why bads don't look at some of the famous artists/bands who made music that sold to the masses, look at thier chord progressions and use them, obviously chance the drums, the tempo, add thier own lead/bass lines.
The music in our 'scene' seems to be written by people with a certain fashion sense that want to be in a band to look cool, not people who have a passion for music and sound.