there's a definite build quality difference, but keep in mind: the copal shutters actually tend to last longer without service, I think they were made to work that way, or they're just not so precise so they're less likely to bind, or something.

Plus, keep in mind, the quality of your images is 5 percent equipment and 95 percent you -- 100 years ago the best photographers in the world would have killed for something as good as a yashica, both for optics and build, but without them they still somehow managed to produce amazing images.