The problem is a lack of respect for the consumer. The manufacturers don’t act as if the computer belongs to you. They act as if it is a billboard for restricted trial versions of software and ads for Web sites and services that they can sell to third-party companies who want you to buy these products.
That really nails it: A total and utter lack of respect for the consumer.
Apple is the one and only PC maker that sees the first-run experience as an opportunity to make you happy, rather than as an opportunity to make a few bucks by showing you ads and stuffing trialware down your throat.