Because, as he said, it's NOT necessarily equivalent quality. Yes, often it is, but also quite often it's utter crap that falls apart. For these particular typ

Because, as he said, it's NOT necessarily equivalent quality. Yes, often it is, but also quite often it's utter crap that falls apart. For these particular type of products - and I'm not claiming this is true in all product categories! - that logo does in fact mean it is a quality, well tested product.