The apollo mod for example. The authentic is quality tested, high durability, high grade materials maticulously battered with tests to eliminate the possibility of your mod having any malfunctions or imperfections. Because of that, it's a $200 mod. It's clone is only $45. It looks similar, same style which is what people like, so they go for the cheaper option with the same style, but doing so do you undercut quality and risk faulty connections and short life span from lack of quality control since you cheaped out and bought a clone?