I think it goes back to childhood likes, I know our tastes "mature" when we allegedly grow up, or should I perhaps say get older but there is an undoubted taste (admittedly probably not coco related) to chocolate buttons that "proper" chocolate doesn't have.
As you say with beer quality will out, (good choices BTW) but sometimes on a hot day a nice cold shandy goes down well, quenching a thirst. This allows you to sip your Old Peculiar to your hearts content.