Fine, I'll admit I am not always a careful reader.
But, I did read it as: they should have diversified. I know from first hand experience that this is really expensive to do for a company. And, only possible when you can reduce costs in other ways, which China obviously has an advantage in the manufacturing realm.
I think what I'm trying to say is that instead of diversifying, maybe their best bet is to make a really high quality product that appeals to a different category of people than Best Buy consumers. I have no evidence to prove this feeling though. It is just what I aspire to buy when I do buy things.