Because you get websites like Paul's Boutique Samples and References List, which, of course, attempts to codify every sample, quote, and homage from the Beastie Boys album Paul's Boutique. Probably more than you ever wanted to know, but (IMO) that's what makes it so cool: It was done out of love, pure and simple.
Fractals of Change argues that "stupid" networks (such as the Internet) are better than "smart" ones (networks configured to allow certain machines running specific software to operate in ways their designers have anticipated). Smart networks may be more efficient when accomplishing those goals, but they don't necessarily work better (or even at all) when you try to do stuff the designers haven't anticipated.
According to www.after50health.com "The classic part of a classical music is that it will not distract the attention of the listener and at the same time be able to instill relaxed feeling in the minds of listener."