Just to put my comments in context, I've been repairing electronics professionally for 44+ years, well back in the valve era.
Certain things fail, and certain things don't - any remotely modern capacitor won't leak - anode load resistors, including the ones still fitted today DO go faulty (in large numbers), simply because they still fit undersized resistors.
Historically, across all kinds of gear - the most common value to fail was 47K - values higher than that are more likely to fail as well, but 47K was always the most 'popular' failure.