The Tough will last for years - a great little piece of kit. Sad about the demise of such an innovative company.
I'm not so sure, I needed an underwater camera for video work and the Tough couldn't match the GoPro's specs. The Hero 8 black has 4K60FPS (the tough is only 4K30FPS), tons of underwater accessories, and what was most important to me was the incredible Hypersmooth 2.0 feature. What was also surprising to me is that if you shoot the Hero 8 using the flat profile it actually color grades pretty well in post. I just leave everything in auto with an ISO limit set to 1600 and a manual white balance at 5300 or 5600 and the footage exceeded my expectations.
Hypersmooth is one feature I would love to see implemented in all cameras that have video features, it really is game changing for stability.
I wonder how many genuine pro photographers - who weren't sponsored to do so - were using M43. Not many I would think.
IMO Olympus did a great job of making the camera and their systems seductive, but at the end of the day a Canon M series would spank it really and was half the price. Looking at those corporate figures the tiny percentage of turnover against the margin and number of employees makes ditching the imaging business a no brainier really.
I think Panasonic with their MFT GH series is still great for pro video work. I'm still using it nearly daily for paying video work especially for industrial projects where my larger C200 wouldn't make sense or would be overkill. For most of my small business video work I shoot with the GH5 for everything from events to social media promo videos. I would not use MFT for pro photography at least not in this stage of my life but I can definitely see the appeal of ditching the heavy FF Canons for something much smaller that still produces footage that clients are willing to pay for.
One thing that most people don't talk about with MFT is the terrible highlight rolloff when shooting wide DR video scenarios. Everyone wants more DR but IMO pleasing highlight rolloff is more important which is one place where the GH5 falls apart and is one of the reasons I am really looking forward to the R6.