I remember the huge lightbulb-size flash bulbs from when I was very young and my dad had a Kodak Monitor with a huge bolt-on flash gun. I really did not like flash then, and I really don't like it now, but it's a necessary evil sometimes. One thing I admit being nostalgic for, which I was reminded of on another board, is the smell of the hot plastic that you got when one of those went off. 🙂
Lately I've been trying off and on for some Weegee-style shots, and to do that right you do need flash. (Yes, I'm trying that style with a 35mm rangefinder.) I've tried two "shoots" with a Vivitar 2600 and actually got some good proof of concept shots. However, I was given a busted-up Sunpak 120, which is of the size that it needs to be registered as a weapon in most counties. 🙂 I was able to get it back together and working, and I'm going to try that style with that flash.
Talk about the tail wagging the dog! Try mounting a Sunpak 120 on a Canon GIII. It's like 3 times the size of the camera! 🙂