I usually pre-order every game I'm interested in!! Games are my relaxation and entertainment, so I don't mind paying full price.
This is my main "hobby", so a difference of a few dollars to play something when I want to and support the developers is pretty trivial.
You understand that the most revenue from a single player game is made on the sales in the first several weeks? So if a game deserves it, is good, you like and would like to support the publisher as to continue making games you like, you should buy on day one?
Never will I understand the logic of getting any software zero-day for full retail price.
The only thing I do not like about Gothic 3 is the progression of the game. Once you've liberated a town, you're pretty much done there and you just move on. The towns are also a lot smaller and the NPCs (at least so far) just aren't that interesting at points.
Yep, that's why I hop around from place to place, doing a quest here and one there. I never complete everything for one place, so I prolong all 'real' choices!! That, is a play style which works with this game!!