Hello, My choice is between 21.5 high end and 27 low end (2011 model). I am wondering which should I choose in terms of gaming but not this year as its going to be great on 27 but in 2-3 years of time. It's 1920x1080 (21.5'') vs. 2560x1440 (27'') so there is no way the performance going to be the same playing in example BF3 on these 2 iMacs - I guess 21.5 wins? So if I am going to buy this computer for next 4-5 years should I go 21.5'' in terms of gaming? Is my calculation correct? PS. Please do not say go for high end 27'' No funds for that!