It only matters to me if I first listened to the album in sequential order. I guess I just like knowing what song is next. When that doesn't happen, it just messes with my head. If I listen to an artist on YouTube it is less likely that I will listen to songs in the order that they are in the album because it is more of a 'mix' online. I know a bunch of the Pink Floyd and Ayreon albums would have to have their songs listened to in order.

very much so.. to me an album is a journey...