The answers are all over the map about "recapping".
Nevertheless, time, age, causes some capacitors to drift out of tolerence, become "leaky" (not really visible leaks) or even short out.
Slight changes in electronic behavior, even unnoticeable ones, can start to happen.
Those Denons with the "electronic tonearm" systems are in my opinion, over-bloated, over-designed Rube Goldberg messes just waiting to fail.
But of course that's my personal opinion, I just think that elegant simplicity is the better way to play a record.