They don't care. They will eventually have to erase everything when they refurbish them.
I don't think so but I'd recommend it so that they can't get at your info left on it.
Yes.
gamestop
The amount of memory that is says is the formatted memory, not the actual memory.
at gamestop the ipod nanos come with chargers
The ipod does not have a memory card slot, so no memory card will work with it.
No, but it is a good idea to back it up before updating.
There is not an iPod that has such memory. The largest memory for an iPod is 160GB (the iPod Classic), which is enough to hold around 40,000 songs.
You can not download more memory to an ipod.
2nd & Charles and GameStop, if you get enough money out of your old iPod Touch.
A lot
go to gamestop