I wanted an ipod - and I've had some fun with the touch. I am nearing my return period and I am wondering - which would last longer, an ipod touch or a nano 5g? I really just want it for podcasts and music. I'm constantly worried I'm going to damage the touch. Do these things hold up well? Does it hurt anything over time to plug and unplug the headphones, etc. . . I guess I'm just wondering how durable these things are because I need it to last a couple of years (or more). . . Thanks!