Can you tell me the use cases for a tilty-flippy screen that I've been missing?
A bunch! Off the top of my head:
General shooting: reach over crowds and still have the LCD facing your eyes. Even take the shot by touching the screen.
Outdoor landscape / macro: when you are on a tripod in a tough position, it's much easier on the back to not have to stoop down to see the screen.
Outdoor landscape / macro: angling the LCD is pretty nice when the sun is putting glare on it. There are very few good LCD sun shades out there, so I'm always futzing with a piece of cardboard I cut out for my 5D3 and mount with gaffer. A tilty-flippy could do wonders here to simply get the reflection out of my eyes, make the screen easier to look at, etc.
Street: take photos not actively looking at subjects through the VF. Shoot it like a TLR, I guess? (edit: Doggone it, someone beat me to this.
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Selfie-cam for stills or video: you can do more by yourself without a PC link to a monitor, without a cell phone link, etc. and your eyes are looking at the camera rather than at some other display. Probably a godsend for vloggers, unboxers and YouTubers.
I'm sure this forum has a dozen more uses of an articulating screen.
- A