Gundato: Going to ignore the prejudiced baiting from the topic creator:
Here is the thing: You also see lots of people who say "I already own the box of this". That is the problem inherent in selling older games, and an extended schedule won't make a difference.

Zeewolf: GOG have been losing out on quite a few sales due to not having advertised "coming soon" titles

Zeewolf: First, I don't think that "american" thing was meant as baiting. Most of people here who are from the US, UK or other well to do countries can easily buy a second copy of a game on GOG, even if they've already bought it (should they care to, more on that later), but in this worldwide community there are also a lot of people who simply can't afford that luxury. I think that's what he meant. Anyway, my main point:
There's a big difference between owning a boxed copy of a ten-fifteen-twenty year old game (that will probably not install on your system, or might even be on floppy disks) and owning another version of a recent-ish game on Steam, GG, Impulse or whatever.
I understand that you and many others don't see the problem with buying games twice, but for me that's not going to happen unless there's a very good reason to. I suspect most people are like me, but even if they aren't there's enough anecdotal evidence in various comments threads that GOG have been losing out on quite a few sales due to not having advertised "coming soon" titles. So again, it's a perfectly valid point.
We know that it's often hard for them to predict future releases, so a proper coming soon list with dates and everything is obviously not going to happen. And I for one don't want that to happen either. I'm really just saying that I think lackoo has a fair point about customers potentially being lost due to the lack of information about forthcoming titles, not that getting a real coming soon-list is important for me personally.
Edit: Wishbone pretty much summed up my personal POV on this. I'd like more information than we're currently getting, but certainly not a list of everything that's going to be released in the next three months or whatever lackoo's original suggestion was (ignoring that such a list would be impossible to implement).

Gundato: Actually, what I was saying is: Decide if you want to buy something based on the costs and benefits.

Zeewolf: It seems you are missing my point. I'm not interested in discussing my purchasing habits. Or the habits of other people, and how they differ from mine. When I talk about my habits, I use them as an example only.
I'm more interested in discussing GOG, and how they can be more successful as a service and business.
I'm saying that there are strong indications that they are regularly losing sales because they are neglecting the coming soon list (as pointed out in earlier posts). That is why I'm saying it could be a good idea for them to put more effort into it. Like they did before.

Zeewolf: First, I don't think that "american" thing was meant as baiting. Most of people here who are from the US, UK or other well to do countries can easily buy a second copy of a game on GOG, even if they've already bought it (should they care to, more on that later), but in this worldwide community there are also a lot of people who simply can't afford that luxury. I think that's what he meant.

Gundato: You are the one who started pointing out that GoG is forcing you to purchase everything twice. Apologies for responding to that.

Zeewolf: I understand that you and many others don't see the problem with buying games twice, but for me that's not going to happen unless there's a very good reason to. I suspect most people are like me, but even if they aren't there's enough anecdotal evidence in various comments threads that GOG have been losing out on quite a few sales due to not having advertised "coming soon" titles. So again, it's a perfectly valid point.

Gundato: Ah, you'll understand how I misunderstood you complaining that GoG was trying to "make you" purchase things twice with you complaining about purchasing things twice.