Well, the question should be - shouldn't you concenrtate on your
studies instead?
But anyways, there is no need to get a ROG (republic of gamer)
laptop just for gaming.
Well since we are on the topic on Asus , Asus is a reputable
company for laptops and realibiity - good specs too.
Here's an Asus alternative that I have posted about a few months
back taken from the 2012 catalogue that they gave out the IT
show.

As you can see, specs wise and price wise, yes the processor may
not be as fast as the ROG. But looking at the graphics card memory
etc, it is enough for an average gamer - on medium settings / high
on older games
Price wise, it's definitely cheaper.
So why not?