I'd argue that some of Aphex Twin's best tracks were remixes he did for other artists, which later appeared on that career-spanning compilation. While it's arguable whether or not some of those remixes contained original source material from the tracks they are supposed to be remixes of, I think it's disingenuous to refer to that stuff as run of the mill.

I specifically pre-ordered that album not because it contained to chocolate Aphex Twin coins, but because it was way better than tracking down the dozens of singles that contained those remixes.