It looks like a neat little camera, worth the asking price (presuming everything works) for its originally intended purpose, but not a collector's item as the headline suggests, unless it happens to be some sort of manufacturer's prototype.
It doesn't look very attractive for wetplate, unless you're approaching wetplate with a very specific idea of what you want to do, requiring exactly this camera. First think about the size plates you want to make and the plateholders you can get. I'm not a wetplate shooter myself, but most of the wetplate photographers I've seen are shooting larger formats.