i started knitting up some cable rib socks in a varieated sock yarn with lots of color changes and yeah, i frogged them because it looked to busy. the cables got lost in the yarn and i felt like all my hard work was gone!
haha but an episode of knitty gritty came to mind where they made a dog sweater that had a cable pattern on it and they used kareoke yarn that was varieated. but it was very gradual and the colors didn't change for several rows. it looked REALLY good! (note to self: buy kareoke yarn)