We usually talk about the best tech that's available. But for every great product on the market, there are a multitude of terrible alternatives, some of which we occasionally make the mistake of purchasing. What comes to mind right now is an impressive looking short wave radio I bought as a student, when I was on a tight budget. It was widely advertised with words such as “The word in your palm”. Well, it could only get local stations with some noise, and pure noise for anything distant. Fortunately, it was bought from a reputable shop that gave me my money back. I even understood I wasn’t the only dissatisfied customer. But one thing came out of it: I learned back then not to believe ads.