Those colors took off in products long before the iMac. I remember seeing all types of things in the early 90s, even pagers that came in those colors, so thats was just a trend that Apple carried over to computers, which made it even more popular and revived it all over again. Now colorful screens on cell phones is the thing, well i don't like it, but to each their own. And i would say Apple adapts to what is going on in the world and tries to determine where it is going at the same time, and they do damn good at that, can't argue against their marketing, they do they research.