Indeed, the 35mm prime is not a lens I reach for often. I use a 24mm f/1.4 lens quite a bit for event photography, but find the 35mm a little too limiting in the tighter places I typically find myself in when shooting in low-light, indoors. And if I have the space, I'd rather be shooting with a 50mm f/1.4 instead (I'm rarely shooting in a circumstance where the 35mm focal length is ideal). The 35mm f/2 IS USM has been a decent lens to keep for those very specific circumstances based on its wider-than-f/2.8 max aperture, IS, and relatively low cost (not worth selling).