You can never make generalised comments on pricing. If higher prices are better then why newspapers are shutting down and bloggers are rising? Why are people us

You can never make generalised comments on pricing. If higher prices are better then why newspapers are shutting down and bloggers are rising? Why are people using Linux? Pricing has nothing to do with Apple products. They sell because of their design and quality. I don't think the books are comparable. OP's book seems a lot more comprehensive than Sascha's book (which I bought) and it would have taken him a lot more effort. Themes are different (general design vs app design) too.