Is it ever a bad idea to reholder a coin?

I have some coins that I wanted to get reholdered, one is due to a scratch on the holder that makes the coin look bad and the other one I wanted to see if it would upgrade. Is there anything I should consider before I send them in? Does a certain "type" of older have anything to do with its value?
0
Comments
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
Badger
Link to 1950 - 1964 Proof Registry Set
1938 - 1964 Proof Jeffersons w/ Varieties
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
<< <i>Red copper in the older slabs is easier to sell because of the feeling that if the color hasn't turned brown or spotted in the many years since it was slabbed, the surfaces must be stable which is not necessarily true for a newly slabbed coin.. >>
Although this is especially true for copper, this is also true for other coins as well since they can "turn" in the holder.