I'm afraid freedom is not exactly what you'll get from Steam :)
Moreover 3,99€ is about 4,70$ and Gothic is here for 5,96$, as far as I remember. It's not a big difference.
I like bundles on GOG. Buying the whole package usually brings me games I want for better price than usual and I also get some additional games I'd not buy, but I may try someday.
The same is with Gothic 3: Forsaken Gods. People are angry that GOG's bundle contains the game (Steam's does not), because it's crap. I don't know. I haven't played it yet. But I've found review by Feroi, which made me want to check that game myself:
[i]From unplayable game to decent one
The original release of the game was a total disaster, which I believe explains the numerous 1/5 notes from GOG members. However the Enhanced Edition (EE) has been completely rewritten by people issued from the Community. They re-introduced a little bit of Gothic spirit, solved all the bugs (a feat in itself) and enhanced the graphics.
However, don't expect the result to be a completely Gothic-like game because of course they could not change the story line. But it is now a decent game. If you have not played Gothic I, II or III, play them first. Otherwise, give Forsaken God a try.
I found it a little bit over priced, though: $5.00 would be more appropriate.[/i]