If it has a pattern in it that I have been searching for, I'd probably buy it. But if I was just basically window shopping, then there would have to be multiple patterns in it, probably 3 or more for me to buy it. I usually don't look for pattern books, instead just buying single patterns. If, like I mentioned above, I'm directed to a pattern book as I can only get that pattern in the book form, then again, I would get the book just for that one pattern.