Wood and blued, chrome, brass, gold plating, and my fave parkerizing all look great. I prefer to use synthetic stocks, and painted metal. I think some wood holds a high value, but some wood i think holds the same value as synthetics. There is some wood that is just cheep and tacky, but hand made/finished wood can not be beat in looks and value. Laminates are pretty cool, I would not mind having a micarta stock! Synthetics are nice and light, usually more or less. The best part is you can paint synthetics, who cares. Scratch it up , repaint it. Break it some how, what ever its plastic. Some dude, or dudette pushes a button, a bunch of machines make like hundreds at a time or something. Not nearly as labor intensive, nor crafted by ones hand. Sure you can design something in a CAD program then push print, I suppose you can mill wood using the same program, but thats the tricky part. Is a wood stock made of wood, any wood hold the same value if made by hand with modern tools, or with more traditional tools and methods?
I think wood and fancy metals look nice hanging on the wall......I have used wood and blued in the field, I notice that my quarry notices the riffle. Some ground vermin can see well very far. So I always paint mine, and it works!