Forgive me for not using the unreliable reply function.
I wasn't trying to use age superiority with my example. My point was that the group you're referring to is important and the gross part of the market yes but it is not ALL of the market. The gaming industry is vast and more or less very conformate if you look at the big picture and where the big money is.
Fortunately there are other ways to make money in this market and to try to compete with the big players with their own playrules etc is a dead end.
For example I've heard many a time that the average gamer is somewhere between 30 to 40 years old (Don't know if it's true though. Media like to mention it.) . Services like GOG appeal to them if they have been playing since they were kids. Flashy stuff and having the latest thing are usually not as important the older you get. You want what you like, not what others say you should like.
I find it hard to explain. Hopefully you get what I'm trying to say.

I do own a 360, but I think you'll find the average PC gamer is older than the average gamer in general. Just hop into XBox Live multiplayer sometime if you don't believe me (not that I haven't heard it back during online Quake matches, but it's pretty predominant on Live).
As older gamers our individual purchasing power is greater, but in total, there's more young'uns getting PS3 and 360 games from their parents than we can ever hope to compete with.
It's not all doom and gloom, there's always a market for older gamers and niche games, it just may never be a juggernaut.

You don't really need to tell me what kind of market GOG is targeting, as I am very much a part of that market myself. That doesn't mean I'm going to buy the old version of Serious Sam, should I ever feel the need to pay for that game again.
I'm not saying the release doesn't have any value, but in my opinion it's just not that big of a deal. Obviously GOG are going to present the fact that they're releasing the _original_ as a really great thing, because that's the game they're releasing and they're not getting anywhere if they say "we've got the version with poorer graphics and fewer online features, go buy!". It's just about marketing the version they happen to have for sale in the best way possible. And that's fair enough.
Anyway. When GOG started they didn't really have much competition at all. This has changed, no doubt due to their success in the first place. I'm not just talking about DotEmu (who we can thank for Raptor, BTW), even though they're growing their portfolio faster than GOG is these days (they've had 5 releases so far this august vs. 2 here). But there's a wide range of high-profile retro releases on pretty much all the competing distribution channels. Including, as we all know, games from the top ten in GOG's wishlist (four of them are on Steam, for instance).
My original point was that GOG are losing exclusives much faster than they are gaining them these days, and they need to do something about that if they plan on remaining competitive. So if they keep releasing one game per week, including games that are available elsewhere already, then that is actually a fairly good reason to be worried. I obviously hope they've got the situation under control, but the clock is ticking.

Damn... You're RIGHT.
1* The games GOG gets are being released elsewhere as well.
2* Newer games often require Steam or depend on other platforms (battle.net, Ubisoft servers).
3* Gamers like their collections in as few places as possible.
4* People like to play the games their friends play.
#2 Means that unless something changes ASAP - we are cut off from releases beyond a certain point, i.e.: we will run out of games.
#1 Means that EVEN the games available might get bought elsewhere.
#3+#4 Create a... "kulturkampf". Unless we do something to spread, our community will steadily shrink and die, as fewer and fewer new members join, some members leave and some go down with the ship.
I can see the end coming. If we don't steer the industry and the gaming community into lots of single-player or decentralized multiplayer games - we are only delaying the inevitable.