Really any good rod thats been made in the past 20 years or so will have ceramic guides - the exception is Recoil guides - which are nickel-titanium or some such hi-tech material.
Your old metal guides can, and do, wear out.
Another thing - the top guide is called the tip-top, not a ferrel - a ferrel is what connects the different pieces of a multi-piece rod, so when you go to replace it make sure you know what your getting.
Any decent tackle repair shop can replace ttem for you if don't feel up to it.