Summary: No doubt about it, the music genre is still being kept alive thanks to Guitar Hero and Rock Band. Unfortunately, I have a problem with the latter. I've heard that Rock Band 2 is easier than Guitar Hero, but has better songs and more of them.
Summary: Some how the UK (pal) version is different from the US version in terms of included songs as well as songs available for purchase online. The UK version has far less songs included and the choices for online songs are also limited.