On eBay USA, a set of three (5GB, 10GB and 20GB) factory sealed 1st generation Apple iPod's are listed at $100,000.
They were released in 2001, offering '1000 songs in your pocket' at a time when Apple hoped to revolutionise the portable music industry. You would have to say that they achieved such a goal, and the extreme price tag on these untouched 1st gen models is understandable to some degree. Collections of this nature will most likely be viewed as historical artefact in years to come.
The item listing can be viewed here...
Even if you have a well used 1st gen floating around at home, get rummaging through those drawers as they still fetch well over £100 on eBay today.