No... cmd+shift+4 mostly covers that base for me. It's also a nice way to take quick measurements of screen dimensions. (Once the drag is started, <esc> will st

No... cmd+shift+4 mostly covers that base for me. It's also a nice way to take quick measurements of screen dimensions. (Once the drag is started, <esc> will stop it without capturing an image. But for cropping images in general, zooming in, adding quick bits of emphasis, etc. - Paint is pretty useful. (It also has the benefit of working more or less the same way since pre-Windows 3.0, so the consistency is a nice thing.)