I hadn't thought much about Macro Photography until my dear wife surprised me on my birthday with a Tokina 100mm Macro lens. As it turns out, the gift wasn't just the lens, but the amazing photographic opportunities it added to my camera toting. Do any of us really take the time to really see what is around us daily? With a Macro lens, a whole world of mini's has become available, and typically, you don't even have to leave your own yard! This past week, sitting in my office on the computer, I glanced out the window, and the shrub the landscaper tried to get rid of a couple of years ago (Texas Rose), had just exploded into an amazing display of blooms.
As I was crawling around attempting to do them justice (which I found very difficult), I noticed a variety of shapes, colors, and patterns surrounding the roses. Over an hour was spent enjoying, photographing, and otherwise spending time with the bugs and the blooms from a rabbits perspective (I think that I am too easily entertained)!
The greatest difficulty with Macro photography is not the subjects, they are literally everywhere, but in controlling light and "depth of field" (DOF). Macro lens' have DOF which adjusts in fractions of inches, not inches. So attention to what is going to be in focus, and what is not is critical to a successful "image" (and as with all artistic attempts, some like and some dislike).
If you haven't thought about Macro, I encourage it (if nothing else to be able to crawl around on the ground again like a kid). It's the little things that become important.