Has to have what appears to be a good story, and good graphics is a must.

Yo compro por 2 razones: El juego tiene un multiplayer que nos hará pasar a mi y a mis amigos grandes ratos de emoción y desafios entre nosotros, o logra tener una trama o estilo unicos que con solo verlo te hacen desear comprarlo.

The main factor in my decision to buy a game is the fun I know I will have with friends! If the game is single player, its for its level of completion (bugs fixed, etc), story, and (...yes...) GRAPHICS!  

I usually purchase gamea to stay up to date with the new titles coming up of a certain franchise or entire standalone games for the endless search for the perfect game.

The story makes me purchase the game.
Another is a feature that allows me to customize my character that'll fit my preferences.  

Any game that I can beat my boyfriend's   in it should be on top of the list.. soo.. mortal kombat x if i were to choose.. but pillars of eternity will do to, just to get in his ego.. bwahhahaha

Top 1 reason for me to buy a game is to play it with my friends..  

i look for a game that isnt horribly coded and i will enjoy. Preferably without leveling on FPS for sure. i like competitive feeling not carrot and stick though i understand RPGs need some sort of progression mechanic.

I typically don't purchase games that are single player only, unless there's mods (ex. Skyrim). I just feel like there's not enough there after you're done with it. That said, I buy games that have a good PvP scene, and has enough content rolling out to keep you coming back.