People have it in their mind that a larger screen size is better even if the end process is not. I have a co-worker who bought the Galaxy Note because of how big it was even though the Nexus / S3 was better than it in all other regards.
I am a big LoL fan and I was excited for DOTA 2 and when I played it, I was quite disappointed. Its game pace is quite poor and you feel like you are sitting around a lot doing nothing.
League of Legends is the way to the future, not DOTA2.