My friend Rachel and I are doing a crochet-along for the "Unseamly" Sweater out of Happy Hooker. Through email, I sent her to KnitPicks to look at Main Line, Shine Worsted and Andean Silk as less expensive yarn substitutes. She called me and told me how, when looking at Main Line colors she heard a sound and realized it was coming from her mouth! It went something like, "oooooooooooooh". She said she was laughing so hard, she had to call and tell me.
Rachel, you are officially a fiber hound. Welcome to the club, sister!