As there are so many different Melodica models in a wide variety of price ranges and with different sets of features, it can be really confusing to decide which one of them is the right choice for you. It primarily depends on what sort of player you are and how you want to use the instrument. Firstly, you have to consider your skill level. If you are a beginner, you might need to start with a two or two and a half octaves model. Secondly, cost matters. The cost of the instrument goes up with built quality and features. So, if you plan on getting a professional instrument, you will have to shell out more money.