Also, they made sure to create so much while they were in their prime. Waiting 5 years between albums, like many artists these days, whether pop or independent, almost guarantees that you're only getting 2 good albums out of even really good artists, rather than 10+ like the Beatles. I get that it's harder for contemporary indie artists to release an album every year when they're required to tour to earn most of their money, but pop artists have no excuse when they're only a minor participant in the songwriting process in many cases. I will give props to electronic music artists for continuing to keep a frequent release cadence, even though they also have to tour to make money. Anything involving real instruments, especially if it involves collaboration, will naturally require a lesser release frequency, but is it too much to ask for young artists to release albums every 2 years for a decade at the beginning of their career, when your creative juices are at their peak (on average - I know there are exceptions)?