Of course they can. But he is -not- saying he is denied the right to change his opinion: "Because you don't have switching costs if you want to shop at another

Of course they can. But he is -not- saying he is denied the right to change his opinion: "Because you don't have switching costs if you want to shop at another retailer than Target, at any time." But this should not be a surprise to an Apple customer. This is a 'feature' of Apple products.