The question is flawed imo. There are many sub-genre's within a genre so you aren't exactly listening to "the same ish over and over again". Take hip-hop for instance, There are multiple sub-genre's that are very different from each other. Some examples include: alternative hip-hop(Blu, MF DOOM, etc.), old school hip-hop (KRS, Kool G Rap, etc.), crunk (Soulja Boy, Lil Jon, etc.), trap (Jeezy, TI, Bun B, etc.), chopped and screwed (DJ Screw, etc.) hyphy (Keak Da Sneak, E40, etc.), mainstream (Jay-Z, Eminem, 50, etc.), jazz hip-hop (ATCQ, De La Soul, etc.), underground (Tech N9ne [maybe not so much any more lol], Apathy, Reks, etc.). The point is you can easily listen to only one genre and still not get "bored".