Originally posted by RobA_Oz …some still do.
True, but then the earliest cameras were about as slow as a good sketch artist with the same subject. Maybe a more appropriate comparison is between the fast food and slow food movements.
When you're working at 20fps, composition goes out the window, although probably only a tad more than at 7fps, with a moving subject, except by cropping during post-processing, and that's limited by the original FoV.
Just because the camera can take a lot of photos quickly doesn't meant I'd forget how to take a good photograph. If I use a nail gun instead of a hammer I'm not going to just shoot nails everywhere simply because I can.
I'd probably still set up a well-composed image and anticipate the subject moving into the zone that would give the composition I want and then fire a burst of much less than a second to get several choices of images for that composition and moment.
That is exactly how I take sports images now but sometimes my buffer fills at a bad moment if things are happening quickly. Having a little more wiggle room there could come in handy even if you aren't just blazing away all the time.
I'm not even considering getting one of these cameras, but I'm also not going to knock what I see as another incremental advancement in imaging technology. It's not changing much about how a camera works or is used but in the right situation I bet it could be handy. If I was in a high pressure, fast moving shoot and that tool would be more appropriate (and the stakes were high enough to make the investment worth it) than my current gear I wouldn't hesitate get a hold of one.