As an engineer at heart, it always seems unnatural to me that making a good product is not enough. I've been involved in several projects which turned out very good products, and through no fault of my own or my team the product was unsuccessful. Bad marketing, bad business, bad timing, or just bad luck is enough to make a superior product unsuccessful. It's disturbing as an engineer to not have your products do well, and it's also disturbing as a consumer when you can't buy the products you want.