So it begins... digital downloads replace UMD

[partridge]

That is plain wrong; what if you are buying on UMD because you don't have internet access? Gaming shouldn't be about whether you're online or not!! That's an entirely inappropriate assumption.

This is the main reason retailers don't need to worry; even if you do have the ability to download games; a lot of people prefer the physical version, they shouldn't be forced down the digital route.