Well, for video (which I don't shoot) there's good reason to have IS. Also, with 4-stop IS, you're talking 1/2 second exposures. Add in pretty darn good high ISO capabilities from modern DSLRs and you're talking, what, EV -1 handheld at ISO1600. Push that to ISO 6400 and you're shooting at night out in the country under moonlight. Add in an 8-blade rounded aperture diaphragm and I couldn't think of a more perfect lens for my use.
On another note, a buddy of mine in a band had a show on Saturday. Gotta love the 85/1.8:
All taken @ ISO 3200 anywhere between f/1.8-2.8 with shutter speeds ranging 1/60-1/200
EDIT: Hmm..these all look a bit flat to me. IDK if it's this monitor here at work, the environment, or if the forum software is doing something to the images but, given what I'm seeing now, these should have more contrast; might be time to re-calibrate my monitors at home. Oh well, you get the idea.
Edited by leftnose - 11/5/12 at 10:46am