Mods which don't harm re-sale


I'm considering getting some dynamat and dampening some gear, especially my CD transport. This leads to a general question: 

Which mods have you done to gear which -- when you went to re-sell it -- either did NOT harm it's resale value or even improved it? 

I'm not talking about different tubes, etc. but changes of caps, diodes, dampening, etc.

Re-sellers, what's your experience?
hilde45

Showing 2 responses by hilde45

Good answers. I'm not a flipper, but I know that after a time, one might want a new and better piece of gear and that at least not *tanking* the resale value makes sense. Maybe there are not that many dollars involved, overall, but I have friends who swear by cap changes (to DACs or to amps) and that is another zone of mod which inspired this question.
@ebm  "This" will. What is "this"? A number of different mods have been mentioned. If you have advice, can you be specific and possibly explain?