Steam is as much of the fact it requires the app to be loaded to use the games, as much as it's just there as a control issue. I have an account and I erased the program over a year and a half ago, maybe two years back now. I kept seeing these bundles and grabbing stuff wasting some paypal bucks on shit I wouldn't even use more than once. And there's a good bit of things on there I'd prefer to have a real stand alone install for I can throw on my backup drive and keep a copy of that's detached from its clutches. GoG and Steam have some games both share, and in any of those I've wanted I bought from GoG. I think that pretty much says it, and if you see my point that's fine, and if not, it's still how I'd rather deal with things.

In the case of Civ 5 I want the game to be detached, it's that simple. I find it angering I can go to the store, buy a physical copy of the game, and be not allowed to use it without installing a third party app that has nothing to do with it other than to control what people do. Same goes with Terraria and that one does have a UK disc that's free of it so it's clearly possible to have a choice if allowed.