Is there a Christmas light conspiracy?

Is there some kind of conspiracy where you can only use your Christmas lights 2 or 3 years in a row and then they self destruct? Then you have to go out and buy new ones. Anyone that has dealt with lights knows that you are supposed to easily find the one light bulb out of 432 that burnt out, replace it, and all is working again. After checking 57 little bulbs, pulling it out, putting the new bulb in, lights don’t work, go on to the next…you just go buy a new set, or a new bobbing head doe. So are they rigged to do this?