You should not be rooting your device just because that is what all the nerdy kids are doing with their devices. There are some serious pits you can get into if you do root and do not know what you are doing.
Research on your serial number and not just how to root, but how to UNROOT if you need to, as well as how it affects OTA updates. If you are running a stock rooted device, this is important. If you are running rooted with a non-stock ROM, then OTA updates from ASUS will not be as critical.
Just my $0.02 to add to this.