I know Aphex Twin was notorious for this and he even got to a point where anything released was run of the mill, middle of the road, remix stuff and was even entitled "26 mixes for cash".
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.
