I have no desire to carry music with me at all times, could have something to do with my age. Some folks think if they do not have music almost all of the time, something is missing especially those in their teenage years. While some mp3-players offer video as well as music, the one my granddaughter has is music only. She got her player last Christmas and after opening it, was not interested in any more gifts. After opening the player all she then wanted to do was download her favorite tunes.
There are many different brands and qualities of mp3-players on the market. Some just play music, some can be used to play videos. If you are in the market for a player, testfreaks.com has information on many of the ones available. Check out the information they have, it is always good to be an informed shopper.