I'm not here to ruin reputations, shut steam accounts or piss people off. These games are truly random. I used to game - a lot. Now with 2 small kids I dont have time. I work for a software company which has agreements with distributors. Once in a while they have specials and i'm offered these special deals. When I used to play games, those random steam games turned out to be $1, $2, $5, $20 dollar games.
It's completely random, there could be 10 $1 dollar games or there could be 1 $50 game and the rest $1 dollar games, or there could be a myriad of combinations - it's all random. I have no control.