Santa, you can open the old pots and clean the carbon deposits if needed. This requires removing the old grease from the contact panal and pick ups. Also, rebend the pick ups enough for a firm contact. You don't have to regrease them if you don't want to, just be sure the where the casing touchs the shaft has lubrication.
Generally, this will make the pots like brand new again (I've never had to replace the ones in my CH stuff, about 4 years old, without ever having a spike problem).
Also, if you don't want to bother with CH you can pick up pots at most electronic stores.