I bought one on eBay a few years ago for about £300, but it sucked so I got rid of it. It used a traditional camera to draw most of the image (itself already quite low-res), and just highlighted even-more-low-res temperature data in blue and red.
I didn't really have a use in mind for it, I just thought it was interesting and thought I'd find uses for it after I owned it, but the resolution was too low to be able to do anything useful.
I wanted to get one to (a) find creatures outside at night while camping, and (b) fix my house energy leaks. But that rez seems awfully low. So amazed at the OP for doing such an amazing job stitching images!
I've had decent luck finding and seeing creatures with the Seek RevealPro I used, although there may be better ones out by now.
I even used it to try to find a friend's lost cat once. I didn't succeed in finding the cat with it, but I did end up finding a few other stray cats and racoons. (For anyone wondering, the pet cat was found later and was taken to a shelter by some good samaritan.)
