Replace inner sleeves on used records?

If they are beat up plain white sleeves, I throw them away.  If they have lyrics, photos, or even ads from back in the day, I keep them.  I may sell some or all of them and some collectors assign more value to them if they have the original inner sleeve.

What @djspinner said.

If you are concerned about resale DO NOT OPEN.

No dump them asap.

Unless they're the plain generic white ones, I always keep mine along with the Mobile Fidelity sleeves....  I toss the white ones. 

I clean all new-to-me records before putting them in MoFi or Nagaoka sleeves. So new sleeves tell me that they've been cleaned and safe (for the stylus) to use.