I have gone through 3 Nanos in regular gym use. I put them in shirt pocket while working out, a really bad environment. Background, old fart who will use his mostly at the gym with a bit of metro riding thrown in. For travel I have tablets (ipad and ?)and for driving I have satellite. Choices are new 16gb Nano or a refurbed 4g Touch. The $60 difference in price is not particularly important, but weight, heft and survivability are. The gym does have wifi so Pandora would be a plus with the 4g. Opinions?