Well, maybe not (though if they ever start I expect a 10% royalty as compensation for their implementing my idea). It took him several years to extricate Berkshire Hathaway from his misguided foray into US Airways stock. But because he bought preferred stock, rather than common, and because he was patient, Buffett managed to break even on BH's investment in US Airways. Later he was quoted as saying things like:“Investors have poured their money into airlines and airline manufacturers for 100 years with terrible results. Think airlines.

Source: Forbes February 17, 2017 12:06 UTC