Dumb question #643: should speaker cables last a lifetime?


This assumes I take proper care, normal non extreme environment, etc. and the cables are high quality (shielding, etc). Will cables corrode internally on their own over time or should they last a lifetime?
aberyclark
2nd note;

there are no dumb question(s) regarding Cabling.  Happy Listening!
Stereo5...Even if you're incapable of understanding satire, at least you were able to jam in your political commentary. Thank goodness for that.

Let's look from technical viewpoint.  Small amount of DC voltage on the amp's output, always present, causes drift of electrons called "drift velocity".  After a while all high quality electrons, that you paid for,  will be replaced by plain ordinary electrons.  
Thanks for all the info. I'm almost 50, so I'm probably good on the lifetime part. 

Jafant, what you say makes a lot of sense. I guess with anything, stereo, cars,etc, no matter how high of quality, it will eventually be imporoved with something better.