And that's exactly why Apple is the world's most valuable brand. Attention to detail, even if it doesn't directly generate revenue can have profound effects that will never be discovered in an A/B test or by crunching financials. Unfortunately most tech companies (and businesses in general) don't understand this.

But probably costs next to nothing in terms of time. Look at all the companies we're discussing just in this thread. Why does everything have to be only in terms of revenue?