Wood is more of a natural musical material IMO.. Like a violin or guitar, it should resonate like wood does for a more natural sound
It is possible that is a consideration . . . I am not sure. However, except for speaker cabinets, most other components have a chassis made of some type of metal. Although I am sure there are exceptions to that. (I kind of remember a passive preamp that was being advertised in Stereophile frequently, and it appeared to have a wooden chassis.) And then ofcourse are the brass instruments, and certain woodwinds such as the flute and sax. . . . I would think (and I may be wrong) that the ultimate goal of any stand for a component would be to minimize vibration. I am also surprised that deniers and naysayers have not chimed in yet.