Collecting games on a console is abit different and tends to have more value. For a start the games will always work on the console. They can be sold as a collection etc.. But Try installing the original Dreamfall out of the box on windows 10 and see if it works. The standard game box is now worthless junk.
I was focusing more specifically on consoles at this point, as that's the only physical release that is happening (period) beyond the backer copies. It's pretty obvious where physical distribution is at in regards to PC games. Consoles... ...less so, but like I was saying. There's a break even point that needs to be considered there, even if physical release is still more popular for consoles. It can be more profitable in some circumstances to take the hit in sales from people who won't buy unless there's a physical copy.
...Also the whole "finding a publisher" thing. I have no idea how this whole thing with Deep Silver came about, but... ...who knows if they could find a publisher to do US distribution, even if they wanted to.