definitely pre-order
We can't just think of this on the fan's scale.
Simon and Benji are probably thinking about changing the world... as they should, with their vision and popularity. So they decided to use Younger Brother as a tool to join in on the Rock Band circuits. They love all sorts of different music, so Simon will do his electronic stuff with Shpongle and Hallucinogen and Benji with Prometheus. I imagine there will also still be quite a bit of electronic music from Younger Brother, too.
But they have a responsibility. Armageddon, the end of the Dark Ages, eternal salvation, blah blah blah.
So they're contacting a larger audience so as to bring them into the Psy scene, and hopefully get turned on to Taoism.
Or something like that...