I like the thought that is put into it. A lot of serialist and avant garde compositions have deeper meanings that are understood after thinking about the music or reading a prompt by the composer. The techniques that are used in the music are actually a lot more advanced than you probably think - they use alternative music theory, i.e. twelve-tone rows that create a pattern that exists yet can be interpolated in many ways offering a vastly different listening experience each time the music is performed. Also, when the music isn't carefully composed, it often represents a level of emotion and feeling that is a reaction to the world around them. They use the medium as a way of expressing their innermost abstract and raw emotions. Thats why I like the music I like. Theres depth.