Now this is what I call a camera:

https://www.blackmagicdesign.com/products/blackmagicursaminipro

Sadly don't have the budget to jump to 12k, and to be honest I'd not know what to do with most of the advanced facilities it offers, but that is a truly gorgeous piece of equipment.

Since most computers can't even do 4k decently without prerendering a proxy file of the video, I don't know who is going to edit the footage this thing generates. Awesome camera though.

I recently rebuilt the main rig here, still an i7 with 32 gig memory but now a brand new Comet Lake CPU, DDR4, and Aorus motherboard, and that's made a huge difference to rendering speed - HD files that used to take Vegas 3 hours to do now render in half an hour, though that does take the chip to 150 watts and 100 degrees C on all 8 cores for the duration of the render.

All production here is now shut down till at least the spring equinox, fortunetaly our stockpile means the release schedule will continue unaffected, so planning to use the revenue, which would usually go to the models doing more shoots, during the enforced break to finally upgrade to 4k, and hopefully also get the dungeon fully redecorated, which its needed for ages. Might think about improving the lighting too.

In this field though, is there really any point in going to the pro-range cameras? For £650 I can get one of these, Panasonic's top range 4k consumer camcorder. Or indeed for £1.3k I could have two of them.
https://www.panasonic.com/uk/consumer/cameras-camcorders/camcorders/hd-camcorders/hc-vxf1.html

Alternatively for nearly four times the price I could get this:
https://www.panasonic.com/uk/consumer/cameras-camcorders/camcorders/hd-camcorders/hc-x1e.html

Given that I've always felt what really differentiates professional WAM producers is much more to do with models, outfits, ideas, overall style of shoots, than anything technical, and half our competitors are shooting perfectly saleable material on mobile phone cameras - Hell, my current phone, a Samsung S20, shoots in 4k, I use it for hobby railway videos - is there any real reason, other than wanting to play with fancier toys, to spend the extra?

There's also replaceability, when we shoot wetlook I go right in the river, usually chest deep, to film the girls coming into the water towards me, and when we shoot mud I go right into the mudbanks with the girls and usually end up mired to the waist. As yet I've never dropped a camera but I'm aware it could happen, and a consumer grade one will usually be easier and quicker to replace.

So is there really anything practical to gain in spending the extra?

You could have a look at the the new Canon EOS R5 Camera.

One review claimed that its 8K frame grabs were better than other camera's still photos. So there would be a benefit of adding high quality stills to your offerings

See: https://www.digitalcameraworld.com/news/canon-eos-r5-8k-frame-grabs-are-better-than-your-cameras-proper-photos

Interesting, and something that was bound to happen with the ever increasing resolution of digital video, but the R5 is four grand, almost double the price again of the pro Panasonic camcorder. Plus stills are mostly history in WAM, video is what sells. I still shoot a few stills (with a Nikon D300s and Sigma prime lens) during shoots but now it's just full details of models and outfits at the start, a few posed ones once or twice during the scene to show "partly messy", and some totally messy ones at the end, and they really only exist for promo use. I used to take enormous 900+ shot still sets as the scene was rolling, but TBH almost no-one buys WAM for still photos these days. Very impressive demo shots in that article though, we've come a very long way since my first sVHS camcorder in 1992!