http://shop.pinkfloyd.com/the-early-years-box-set
Looks cool, but I'd never spend that kind of money on something like that. And honestly, it would take me forever to get around to listening to all of it.
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I used to be with it, but then they changed what "it" was. Now what I'm with isn't it, and what's it seems weird and scary to me, and it'll happen to you, too.