Imagine you are in the market for a car. You don't like the newer mainstream models very much, and maybe you're searching for something alternative. Then a friend of yours, a car enthusiast, tries to sell you on the idea of buying the same car make he owns: it's faster, safer, more reliable, better in every way. And it's cheaper! This car brand sounds really enticing. What's the catch? Well, the friend says, there is just one tinee-tiny problem: Every three months or so the car breaks down, and you need to open the hood and make some usually minor interventions to the engine in order to get it back working. It shouldn't take long, and you can find instructions online if you're lucky. You don't need to be a mechanic or anything. If this proposition sounds ludicrous to you, congratulations: You've just understood why the Linux market share isn't higher.