Everything is marketable. Where luxury products were the first ones to be designed into a fashionable way, more and more everyday products are being designed. What I mean by this, is that, while still fulfilling their function, the looks are being taken care of as well.
This is a normal evolution of the maturation of a product. When just serving a purpose stops being sufficient, designers take over. Whether this is a good thing or a bad thing, I leave up to you.
Below you can see some examples.
Do you have more examples? Please comment!