I shoot with an A9 as my main camera. My backup is an a6500 that mainly stays in the bag except when I bring it out for some gimbal video work. I've been contemplating replacing the a6500 with an A7RIII since it came out. But I'm not sure it's worth it. I know I would have a use for the A7RIII in my line of work, but is the bump in image quality worth the price of admission? The largest MP camera I've ever owned is the A9, and I've never owned or shot on a camera without an AA filter.
For those who own both, or have owned / shot on both: Will the boosted IQ, resolution, and lack of an AA filter make me go to the A7RIII in certain situations, or is the A9 good enough that I won't see many real world benefits to the A7RIII? For anyone who doesn't know, I shoot events, weddings, portraits, and am getting more into video.
P.S. Do not recommend the A7III lol. The a6500 is a great "sit in the bag" backup, as the a7III most likely would be. This is specifically about IQ and resolution.