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Animator John K talks about design theory all the time. His blog is great, you should read it. In a post called "The Death of Form" he compares old toys with their post-1970 analogues. He concludes that modern toy makers "must hate kids. Either that or they are just plain retarded." My thoughts exactly.
I feel the same way about classic books (or just plain good ones) compared to the bulk of what's available today. One day when my wife is out of the house I'm going to fill up a garbage bag from our bookcase, and when she comes home there will be nothing but good stuff on the shelf!