but the problem in the shops is that if there is someone to help you they are generally young and/or not at all knowledgeable. Their sole purpose is to aid you to getting your purchases to the checkout, not help you to make the right purchase.And, often, they will hand out totally erroneous "information" based on a mixture of willingness and ignorance.
Exactly! My sister was in the market looking to buy her son a Nintendo handheld, talked to the sales clerk about the difference between a Game Boy Advance and a Nintendo DS. The sales clerk told her information about the opposite products. In other words, when he was telling her about the GBA, he was really giving her information about the DS, saying the GBA could play DS games, could connect to the internet, had Wi-Fi multiplayer, etc. She ended up buying a GBA for her son when she could have just bought a DS for a relatively small amount more and gotten all the feature of the GBA and much more capabilities from the DS.
But again, back to the topic: I think the article headline is a bit misleading. In a situation as described above, I would return the product because it wasn't the product that I intended to buy. It would still be working of course, but it would be a valid return.
I've also returned video games that work because they were gifts and given to me for the wrong console (PS2 instead of GameCube). I returned an LCD monitor because about 20 days after I got it the same store was offering a better LCD monitor for a lower price.
My point in all this is that just because a product is still working that doesn't mean there's not a good reason to return it.