Not quite, but you're getting there.
Uru was meant to be PLAYED online only, but it was always going to be a downloadable/physical product. There's no way that game could work (not that it did much, anyway
) without the data already on your hard drive. So again, it's still a little different.
Anyway, yes, it'd be easy to throw Gumshoe (or another online serial) cases on a CD eventually. But as a random collection of low-budget cases, I'm not sure it would attract much audience as a retail product.