I rushed to the packed Sony booth the following day. In less than 5 minutes hands on I was placing my pre-order (only to find out it couldn't go through until midnight).
In the past I've always used 2 of the identical camera bodies. I want to be "in sync" with a body as much as possible, never spending valuable time searching for controls as they differ between bodies. I've built that belief after years of using Nikon cameras that had minute control changes with every single release. However, the A7 III has the identical body as the A7R III. Pair that with the customization and the only difference in handling the two will be how the AF points line up.
I feel the A7 III is 2018's D750. It offers an insane level of performance at an affordable price. I'm sure there's a lot of aggravated A9 and A7R III owners out there. One negative of buying into Sony is your camera investment can quickly be devalued by their fast-paced innovation (and refreshing bodies when they should be recalling them - I'm looking at you A6300). I think this move is Sony's bold method of grabbing as much market share as possible before Nikon and Canon move into the full frame mirrorless market. It seems like they are almost losing money on this body, but I'm sure they'll make it up on the lenses.
The Sony A7 III will be available April 10th, 2018 and can be purchased here