Stuck with my nifty fifty all night and I couldn't be more pleased with that decision.
You know I despise flash if I'm anywhere on location. It's loud, it's bright, it draws too much attention. You can't be a fly on the wall if you're giving away your location in an ungodly obnoxious manner every two seconds. It changes how people react to the camera. They put on their 'camera face', which is bad.