I defense of Dysons ours has provided 16 years of reliable service
Apprently when Dyson were really dominating sales he heard a rumor that people were telling porkies about his products to sell others
He went into John Lewis in Bristol and asked about vacuum cleaners. He was told that although Dysons were good the were made of poor materials compared to rival brands. He got out a hammer and attacked the rival machine smashing it to pieces. He the showed that he couldn’t break the Dyson. He explained that the plastic he used cost 3 x as much per tonne as the one used in the rival brand
Oh and one of my favourite Conspiracy theories is for the Fitst Gulf War. America had a massive stock of cruise missiles worth a million each. But they were due to be retired at the end of their design shelf life. By firing them at Iraq that got Saudi Arabia to buy them a full set of new ones thus avoiding the replacement costs