Some of the anti-swatching sentiment admittedly likely stems from laziness. But another part is fear of running out of yarn. Since I usually buy a bit extra, this is pretty irrational, I admit. Usually extra yarn in the same dyelot is available. If worst came to worst, I could likely rip out (oh, but more ends to weave in!).
I am trying to overcome this aversion. With my first socks, I needed to know the sts/in before I could start on the pattern, so I eased into it with a Trekking XXL and a Cherry Tree Hill swatch. This weekend, I knit up a storm of swatches - for clapotis, felted bag, afghan square, and Anatolian socks. I have the beginnings of a detailed swatch set on flickr, with all relevant information. The Anatolian sock swatch is shown here, in Socks That Rock and Twisted Sisters Jazz. The varigated Fluorite colorway ended up being too busy, and parts of it blend in to the raspberry background. I am going to do the actual socks in Citrine, which is a light yellow, dark yellow, light peach colorway.