Smartphone/tablet games get so boring after a while, not to mention it often kills battery when you could be using the device for other things... That's why people have their handheld gaming device.

Also, some games which have a score of 9-10 may not be for you. I had Call of Duty: Modern Warfare 2 and Halo 3, but I just didn't like the games. Also, my friends played them more than I did, and those games were my copies! I look for what I like in a game to get the most replayablilty out of it, otherwise the games (like the previous two games I mentioned) are a waste of money. In conclusion, a 6.0 game could be worth more to you than a 9.0 game.