It was weird that the problem just appeared when trying to play a game. It didn't appear while playing or anything. I've had buttons stick, and usually just a cleaning would fix that problem. Nothing like what is happening now.
I never heard of a lifetime warrenty for Nintendo. But, I do have original documention - I will have to dig it out and look. I never thought of that! I wonder what they would say???? :-/
Ok. Update...I just checked my original documentation regarding the warrenty (I still have the warrenty card too!).
It is a 90-day Limited Warrenty
I never thought of trying to sell a broken controller on eBay. I am sure someone would want it since it is older. I did purchase my action set at a garage sale, so I do not know if it is the original controller that came in the box. My guess would be that it is, but I couldn't say for sure that it was.
You can find them fairly easy on E-bay. They're simple and cheap, so I wouldn't worry too much about the controller going up. It's common for older hardware to stop working after normal wear and tear. The N64 controller is notorious for it.,