I couldn't care less about the name on the box...
But you would be in the minority. The populace at large pays over the oddsa for brand regardless of features. Some compnaies are nothing but brand. Prada, Gucci, etc. only cost a lot because they cost a lot, creating a premium brand image, and people will pay just for the badge. People will pay £15 for a T-shirt with a particular franchise on it where said same shirt with a random print would be worth all of a fiver.
The origins of brands was in names you could trust, and the concept is sound. You'd buy Cadbury's chocolate because you new it was real chocolate instead of whatever floor-sweepings the local confectioner cared to squeeze into their own 'exotic' recipe. You'd buy a Sony tape-deck in the 80's instead of some unheard-of brand because you new it was a solid, quality product.
Let's look at another part of branding - software. Why are we on Final Fantasy XIII and XIV? Why isn't every new game completely retitled? Because the name helps to sell the product. It is human to associate with known identities (better the devil you know than the devil you don't) and naturally people will tend towards something already known. This is the purpose of advertising, to establish a name in the consumer mindset increasing the likelihood of consumers picking your brand over everyone elses. This is also why adverts don't just tell people the features and leave them to make an informed choice. Why does Sony sponsor European football so heavily? Just to establish the name.
I may be repeating myself, but where brand isn't the be-all-and-end-all, it's an essential part of the whole effective marketing package. You'll have a hard time palming off a turd as a chocolate bar if you put Cadbury's on the label, but if you swapped Cadbury's choloate with cheap store-own-brand chocolate, people would still pick the purple wrapper over the bland white one
without ever trying the own-brand chocolate to see if they prefer it because they don't trust it, and they won't tend to try it unless the prefered brand lets them down. Which makes sense. There's too much damned choice in the world, and we can't try every flippin' option that presents itself!