Metacritic is a terrible source to base your decision to buy or not buy a game (unless you actually read the reviews). Seriously, they did bomb Dragon Age 2 as well and other sites' user review scores were way higher. Look at the user reviews for Portal on IGN [http://pc.ign.com/articles/116/1162215p1.html] and Gamespot [http://www.gamespot.com/pc/action/portal-2/index.html?om_act=convert&om_clk=topten&tag=topten%3Ball%3B2]. The user review score average there are 8.5 and 9.6, respectively.
Of course, things would all be better if we stopped looking at arbitrary numbers to decide a game's worthiness and actually read what people say.
Of course, things would all be better if we stopped looking at arbitrary numbers to decide a game's worthiness and actually read what people say.