Just because something is new, doesn't make it better. Ask any of the people who gave their opinions in this gallery, stating the piece of "obsolete" tech that they refuse to stop using. Sometimes new means complicated and old means simple, and usually simple is better. 

For example, take the original iPod. When it comes to paying music, we're now more than capable of doing so from our phones. However, while the convenience of opening an app and having all of the music you could ever want right at your fingertips is nice, an original iPod is like that app as a device. You don't need to worry about your phone battery or its other functions, and that "clicky wheel" is one of the most satisfying buttons every created. You can strap it to your arm and go for a run, or throw it in your pocket and forget about it. You don't have that luxury with a phone.

Aux cords also made listening to music easy, and passing your friend the aux was way easier than trying to get their phone to connect with your car's spotty bluetooth. It kept people off of their touchscreen dashboards while driving too.