I try not to be a jerk about many questions from noobs (like when people ask about Steam keys) but this seems like it has a really obvious answer and is kind of a dumb question. If you take an item to any other store for a refund, you don't get to keep the item.

Do not resist, let the asshole flow through you.

Wait. We can have steam keys with our GOG purchases? Where are they? I just spent 20 minutes look for them. Seriously. I don't see them. Where are they?

P.S. Send me free games plz.

Try for a little bit more, it apparently didn't work yet.

Wait a minute now, that's not my way of speaking... it seems that as you're becoming less of an asshole, I become more of one.

Similar situation here - I ordered a hard-to-obtain book that was rather pricey, and when it arrived it was the "teaching guide" for the book, not the book itself. I contact the seller and they refunded the cost, and they didn't want the book back either. It was a useless item on its own so I got rid of it too.

A damaged CD is pretty much useless, unless you want to use it to scare crows from your cornfield. But a digital downloaded game is still very useful, even if not to you, so there's no reason GOG would benefit from letting you keep it.

Not quite, because the downloaded game might very well work well enough on another machine (different hardware, drivers, or whatnot) while the scratched disc wouldn't be readable at all.

I get your point.