Honestly if I were to buy another webcam beyond the cheapest "yeh that'll do" one I could find, the main thing I'd be looking for is microphone quality and features. Sure, I could and have brought a USB mic, but a webcam is pointed directly at you (like a shotgun mic, which seems ideal for this kind of thing), whereas the bulk of a USB mic can be harder to position in a way that doesn't block your forward monitor. If it had a configurable mute shortcut, with a little light on it to show its mute status, I'd buy one in a second.

In fact, saying all that I don't even think what I want is a webcam, I want a USB webcam-mounted microphone. I do remember seeing one once, but its very old now and has none of that mute functionality. Wish someone would make one again