sherringon456: Why? Surely they would make more money as they would sell more copies if they put their whole list of games on and then started repeating The more popular ones none of which I have seen in the sale would sell really fast as well.
Cavalary: Keeps people here and engaged (see this thread for one), creates buzz on social networks and forums, gives them one hell of a boost in site traffic rankings, so sustained visibility for a number of days instead of "oh, GOG has a sale, go have a look" once, people have said look, then leave.
Suppose... some people might get bored waiting for the one they want for instance if they went through them all and un less the sale is longer, there would probably be between 1-3 repeats instead of 3-4. But it still doesn't make sense to not put nwn or baldurs gate for instance in the sale as they would go fast. Also, btw has Jade empire, mount and blade with fire and sword or nwn been up when I haven't been here as I haven't seen them?