If they are concerned about bugged hardware (which is difficult to do and expensive), I don't think "bugged" software (which is much cheaper to replace) will be on their shopping list either...
True, what I meanbt is that the consumer software marketplace is originally built around those platforms. During the last several years, the market has been largely fragmented by tablets, but I have the impression they still represent a major segment. That said, industries and services may more easily accomodate the absence of these players.