Raven,
I think it all depends on 4 things: the rarity of the item, the age, the original unblemished value, and the intended purpose of the item. Items that are 50 to 100 dollars don't hold value when chipped. Chipped Place settings of china have very little value. If the chip affects the purpose like if it is on a handle or a crack in vase and thus you can not put water in it etc. Now if it is a Tiffany vase that would be 4000 bucks then yes it might still have value.
I collect Blue Phoenix dishes chipped stuff it not worth anything, but I had a chipped piece in green Phoenix that people were fighting over because it is rare. So it all depends.
PeLady