the big name stuff are way behind the chinese brands on the low cost stuff. Lower resolution, lower sensitivity. They might still make sense for professional use, but for home use, they're expensive and not as good.
Not sure on that.
Some of the cheap stuff is cheap. The HTI A2 is apparently built on a SEEK camera module, but the HTI A2 only takes a JPEG screenshot of the displayed thermal image. There is no thermal data.
The refresh rate is also really low.
Low refresh rate can also be found on name brand thermal cameras.
The Hickmicro Pocket 2 comes very close to the Flir E60 for resolution and refresh rate. The Flir E60 had more features than the comparable Fluke and the Flir did thermal video which was groundbreaking for the price at the time.
The 640 x 480 IR resolution space is still big money to enter.
Also not sure how much you have to spend to not buy made in China, for a thermal imager. Just because it's a Fluke doesn't mean it's USA.