The almighty $$$ does play a factor here. I love the look and feel of a wood stock. But cash has always been tight for me, so if I can save $50 or $100 by getting a composite, then that has often happened. I do like the durability of them as well. I guess for me it boils down to, what is the purpose of the rifle? If it is strictly a hunting tool, then why not get plastic? On the other hand, if you are buying a traditional rifle - for looks, for history, for a collection, then you have different priorities.
If I ever get to the point where I can start collecting rifles for "fun" as opposed to utility, then I'm sure I will invest in wood stocks. But until then.....