As for me, I've considered getting an EOS R (or RP) camera simply to have the facial recognition/eye AF. However, I have yet to make that investment. Instead, I recently purchased a used 7D and am having it converted to a UV camera. I've been considering a UV conversion for quite some time, and finally decided to pull the trigger. I like the idea of capturing images in a totally different spectrum than what normal cameras can capture, to see what few others can (or will) see. I enjoy using my IR camera, and I'm sure I'll have fun with the UV one as well.