It's one format of film. It was an awesome format of film with awesome colors, but still one format. Even if by and large digital becomes the main format I think some of the companies will still make film for hobbyists at the very least. There will always be a market for it, so I don't think it will ever go away.
The pictures that kodachrome took were amazing, though.
It's sad to such such an iconic part of photography retired, but at the risk of pissing off the film photographers, I don't think the *spirit* or look of Kodachrome is gone by any means, and is entirely re-creatable using digital processing techniques. So, it's sad, but not devastating.