Are you absolutely certain? In car interiors, the only thing that appears cloudy is the glass, because you can see through it normally. The upholstery, dashboard and door panels all look fine. You only notice a difference on the non glass parts after you clean them, and then see a 50/50 comparing the cleaned side with the uncleaned, and then you see the difference in the color.
I agree about durability, though, however glass is easier to clean without scratching, because it is so hard, and so as long as it doesn't suffer a hard impact, it can last hundreds of years or more.
You can have glass cases shipped. For example, I had a dome shaped glass display shipped. It is gorgeous, and looks better than a cube shape on some pieces. It is very elegant. I agree that individual cases look better.