Because it was on sale? A really good sale! $3.00 per skein instead of $8.75!
And I wanted to knit some fingerless mittens for me! Plus, since I finished the lacy anklet I needed to start something else. I like having a big project (the Rosebud cardigan); an easy project for nighttime (the crochet crappy yarn throw); and a small, tuck-in-my-purse project (fingerless mitts). This yarn is tres nice! I kinda wish I had bought more and I need to make sure I don't drive past the yarn shop anytime soon, or I will buy more! Which doesn't fit well with my New Year's Resolution.