The most important aspect is the individual interest itself. It is not always possible to find the aircraft model kits that you like, especially if there isn’t enough demand for them already. If you don’t have any particular favourites, then all you do is to look for guidance from your friends with similar interests or from online discussion forums. Some others get into the hobby of model aircraft just for the fun of building them. They don’t think much about the model of the aeroplane or anything. They just like having something to do and like the feeling once they get when they finish assembling.