Arecont Vision is another good brand. I’ve got a friend that got a bunch of Arecont domes stupid cheap and they have amusing modes like “casino mode” (guaranteed 30fps recording for various gaming regulations).
(eBay deal sniping sometimes gets you some funny deals but YMMV — I picked up an Axis Q1700-LE license plate camera for under $200 for some experiments.)
I've eyed Axis cameras but they're pricy (particularly for large sensors) and don't seem to come in the turret form factor I prefer. E.g. the AXIS M4317-PLVE is a dome and $717 at newegg. Kinda a weird model actually—180/360 degree view which isn't what I'd want. But I haven't found anything that is at a price I'd like to pay myself, let alone recommend to others for home use.
Vivotek's a bit more reasonable but still. The (brand new?) Vivotek VIT04A-W is the closest I've found—1/1.8" sensor, 4MP, turret, $535 on jmac.com.
These Ubiquiti models seem really nice in terms of hardware specs and and very reasonably priced. $200 for a 1/1.8" sensor turret, $479 for a 1/1.2" sensor turret with extra AI features. Same general price bracket as Dahua, I think.
Check secondhand. I'm finding quad sensor cams that retailed for $2k purchased off craigslist for $100. Wipe em, flash new firmware, deny all internet access at the network level, and you're good to go
https://www.arecontvision.com/news/arecont-vision-adds-casin...
(eBay deal sniping sometimes gets you some funny deals but YMMV — I picked up an Axis Q1700-LE license plate camera for under $200 for some experiments.)