as UBRocked mentioned, there actually is no need at this moment in time unless you want to tinker, maybe install some non market apps that require root permission, tune the tablets processor up to a higher rating.
the only time I'd ever root is when,
1) the warranty expires, then I can tinker...
2) support runs out i.e. asus refuses to update the AEPT and it requires manual intervention to get our machines to a higher OS level, then I'd root and install the latest and greatest OS available.
so far im 8 out of 10 with the AEPT, will see when 3.2 and ICS comes out to see if all the niggles gets resolved.