I know some might feel this is another "hate" Rondo thread. Well thats not the point.
The point is, even Dirk who is 8 years older is still considered to be a better player than Rondo.
Rondo has ways to go. I don't think Rondo can't get much better (realistic expectations) and should not be asking for the max. Even Tony Parker who is considered to be better than Rondo (4 years older) has taken a paycut year after year so he can help the Spurs sign other players (making his life easier and having a chance to compete for championships year after year).