Knit Picks Yarn Socks

I recently bought yarn from Knit Picks for the first time. Both of these socks are crocheted. The red bricked socks are made using Stroll Sport. The pattern for these socks are found in Crochet Socks! book.
Link to book:
The ripple sock is made with Felici Sport. This sock is my own pattern.
I thought the prices for this yarn where reasonable.