I don't get what adaliabooks is trying to say! I mean, I have the natural urge to construct counter-arguments, but basically, I just don't get his point.
I can only get it to make sense on an emotional level: My original post was kinda like a consumer political statement. As such, it can be just as irritating as any other kind of preaching. Maybe this is the core here.
Anyhow ... I bought the game Nex Machina at launch. Since it is heavily inspired by the classic arcade game Robotron, the entire game is based on replaying the same levels over and over, to raise your high score. To up the replay value, it is also possible to earn coins in an Arena mode, so you can buy new visuals for your avatar, and there are a few achievements too.
But all of this, achievements, Arena mode, even the basic high-score, those fundamental features only work in Galaxy. Since upping your high-score is the entire goal here, the game is heavily crippled.
The game is based on online high scores, so it makes some sense that it requires Galaxy. Still, it is a single player game (with local co-op) so a potential buyer has no way of guessing that it is heavily dependent on that fully optional client. This basic requirement wasn't mentioned on the sales page.
This might be a problem in the near future: More and more games becoming more dependent on Galaxy, and the customers having to figure out on their own which games they can play without the client.
(By the way, Nex Machina is pretty awesome, so if you use Galaxy and have a controller, I can fully recommend it!)